Motion 06 | NCERT Numerical Practice | Previous Year Questions | Important Concepts | Class 9

0:00 Hello, hello children, how do I welcome you all? Welcome to the Physics class of Sprint Beach on the Physics Foundation YouTube channel and today we have brought this practice session on demand only for NCERT Numericals of Chapter Number 8 Motion, otherwise I have discussed only NCERT questions in between and after every lecture, above that we have also discussed some intimacy, some such lumpia questions, okay, so no problem, still we are doing a lecture dedicated to NCERT in which we will discuss only tempered glass and the challenger questions of the previous lecture which were quite tough, I

0:47 think it is okay, if we make it, then we will make it, so today average speed, which is a very important topic, a question is made on it, in NCERT, a question will be given on Everest, exactly that its first point is in front of this pimple Total missions point total time is there and plus seat kids boxer for abhilashi tehri formula seat after the completion of this chapter in the notes you will definitely find the apple of the backyard there will also be formal shirt inside it and you will find all the definitions, derivations, all right, we will definitely upload the notes in this way but they will be moon, okay a celebration of expression means where acceleration is coming, see here the solution and here are these

1:32 three equations of motion, how to approach them today, how to move forward, we will definitely see some questions on graphical representation of motion and there will also be an attempt on circulation so the first question Abdul this is NCERT question question number three is x you Abdul while driving school computer average speed here is a question on speed you also so one kilometer per are all his return 111 the same reduce traffic and average speed effective kilometer per hour average speed co Abdul step Okay, so let us quickly start folding this question what the child is saying is saying that he is going to school from his home Abdul is going to school, okay, at what speed is he going, brother he is going at a speed of 20 kilometers, he is coming

2:19 back at a speed of 30 kilometers, okay, if he went then 30 and if he comes back then he is asking you to find out the average speed, let me tell you something, if the average speed is the formula, what is the formula of average speed, it is purely fundamental, total distance point total time, yes or no, total distance travelled from total time taken, that is, if we divide the total distance at night by the total time, then we get the average speed, yes or no, so we calculate the total distance, that is, the time taken to come and go, from which we take it as 1 and the distance of coming is that,

3:10 we take the time taken for going as three Let's take the coming time reduce to take the going speed maximum Let's take the coming speed reduce S2 What's the problem, what's the problem, tell me the going all in one is done, the coming all is broken, fine, within the office average speed, the total distance point total time, we have to do it, so what you have to do is add the going distance and the coming distance, add the going time and the coming time and divide both, that is, we will do one and a half OnePlus 6 2.1 plus two what do you say or no, the going distance and the coming distance have to be added, so given first and pole 2162 now do one thing Now do one thing, we will turn the phone around, now we will

3:57 cut that how much will be the going distance, from which you can see why should you take it late x, the distance of going is also x and the distance of coming is also x what do you say, what do you say or you will see one I have written Steven also let it go x D to 1 minute did xs-1 how much son, what is our going speed is the speed of going at 10 kilometers and what is the speed of coming? The speed of coming is at 10 kilometers and he got less traffic and reached home quickly, so the speed of coming is coming at skating kilometer, if you do not have t12, you do not have d12, you have d12 but you do not have t12, then what will we do, we will take out Steven from one and a half kilometer and take out

4:45 Titu from Guru Tu, tell me it is possible or not, it is possible, speed shrink defense has to be applied upon time, time is equal to take sources, tree has to be applied, see this, see speed is equal to distance upon time, to time is equal to depends upon the upon speed, we have transported it and taken it here, we have liked the cosmetic, the time has come for Addison speed, so what will I write to three, I will write to teams, day one upon s 142, I will write to Dr to you NS2 tell me son how much is life, Devan is how much is xs-1, so what is the total time, be time, access point they friend, tell me take

5:31 out Haryana set2 What is the distance x what is the speed so access point katiyar so your time is done your time you have also come your life has also come cadets have been given from all around about two hello viewers to that for but when the answer will come look look ji ji ji had written it, I had just written to put so what is the average speed deposit i.e. explain chakra take chakra given back side to back so instead of life explanation titu took x-ray in place of time mind what will I write in place of time mind access point 20 what will I write in place of time two write access point torn here so access point a plus x porn thirty and folding it is left that's it

6:19 now the mathematical portion is left so you will do it I will do x plus 1 will become 2X okay the LCM of 3020 is 6 right 3020 calcium 6206 3X will come to 3262 will go like this okay I ask for this much mathematics how did you find it useful By doing this solve the solver your diameter now tell me one thing 2xl above were below express to accept if we say it becomes 5x it will become like this look above to Akshay below 5x point 6 and this six will go up and get multiplied

7:05 there just by doing puja which will go up in divide and get multiplied so it will go 2X multiplied by 656 five x x sex is cut 5105 512 60 60 so after that it becomes 24 this is 24 kilometers the average speed has come the average speed has come this is the answer this is completely it is completely fine yes take a screenshot do it let's move ahead situations of possible and give one example of fine example you will give brother I will just understand the question example you give it

7:50 deep inside the comment an object is moving with constant acceleration but that thing which is it can this ever happen What does it mean to be 2012, rest, can something be activated even while being at rest, can this happen, what can happen anytime, brother, it can happen, okay, celebrating means change in velocity, right? That thing which is here, elastic heroes, how will you understand this, see this children, see that you lift something up, you lift something up,

8:38 that thing will go up, it will stop at a point and after stopping it will not come back, he said this does not happen, then its amazing, lift it up, so going to this point, going to this side, and stopping, it will not stop, it will not go back, it will go from here and cannot come down without stopping, it will have to go to change its direction, it will have to stop after coming to the point, yes or no, it will either go, stop and come down, tell me something, when it will be on the side, at its max height, then what will be its velocity, the answer is zero, there will be no confirmation, but tell me one thing, is the expression not looking at this point, what is at this point There is no pulling it down, what? At this point,

9:25 gravity is not pulling it down, that is, it is pulling it, that is, an expression is being felt here and it feels like 1948. If you have read about gravity, or if you have been at a railway station, then you will know that masturbation feels equal to g. A selection gives equal to g. And how much is g? G is 98 meters per second square, that is, if that thing has stopped, even then what will be applied on it, acceleration will keep on being applied. It is a little difficult to understand. It is a little difficult to visualize, but this is true. If this thing is applied, then a solution is felt. There is a solution at this point, of course, that thing, so despite being a roti, what injection is being applied on it, try to understand this, look at this second thing, an object being insulted, Akshay Survey Team, the

10:11 perpendicular traction, okay, there is a deep object, it is moving, it is moving in some direction, that is, there is some mark on it, but its activation seems perpendicular. Can this happen? Can this happen? Can this happen now also How is it possible to achieve uniform circular motion? Remember its previous lecture. In the lecture, we had read that when any circular object moves on a circular path, when any object moves on a circular path, its direction is tendential, its face is towards the tangent, but someone or the other is pulling it towards the center.

10:56 Remember, someone or the other is pulling it like a radius and this activation is called centripetal acceleration. Centripetal acceleration means there is a 90 degree angle between the two. Isn't it so? It may be that there is a perpendicular traction or not. When the electron revolves around the nucleus, the acceleration is perpendicular. When the moon revolves around the earth, the acceleration is perpendicular. Something similar is happening here as well. From here, something goes towards this side, then goes towards this side, goes towards this side, goes towards this side, but every time the acceleration is 90 degrees towards the center. 90 degree 90 degree line seems to be a convention, I could not understand what it is, this is this system, if it is okay then

11:47 both can go on, it can be possible and think about an example, write in the comment now motor boat starting from rest, see how to solve it, so let's fold it like this, from rest means having initial velocity, we will take the initial i.e. here, son, we will take kilometer per second, okay, it is moving on one, it is making a flat, straight line, what is this, what is this, if you are just doing this, what are

12:33 you doing, what is the constant rate, what is the rate of three meters per second, that means three meters per second square is a solution and for how long did you keep doing it, I am saying, kept doing it for seconds, 8.0 means it became one, so what did you keep doing for seconds, kept doing action rate till today, I am saying how far will this boat reach, this is now, how far will it reach, doing excellent, that means the displacement from here to here, so I am asking, yes or No what is being asked what is being asked displacement you tell me one thing like this ATS remembers the equation and after

13:21 looking at these four, for the sake of looking at these four, are you remembering any question can I here Veer is equal to you plus city put here such equal to UT plus apply on practice yes which will be the second question here such approach is made your approach of inspection will not be good till you do not write given till you do not write life till you write what you have to find first write given then see what is the question asked then go back and think sit for 10 seconds which can be different is there any problem here by combining you ATS is there yes yes there is formula such is equal to UT administrator city get the square root done

14:09 find the answer there is nothing nothing like this request you son how much is nothing it is zero how much time is eight seconds kept plus how much is half aggression free and how much is the deep of eight what I have to do it son I have to do a courier very good this is Gaya Hero isn't it this is Gaya Siron plus yes husband * cut it from 8282 to 832 ok it is 323 and 949 km ok fine why not 30 meter answer place multiply everyone by your bus fine children go ahead Atrauli there is a trolley while

14:59 going down when inclined plane an incident prince is coming down no problem from anywhere Aryans what difference does it make okay I am feeling sleepy ok dates activation of expression see its download acceleration by folding like this both the countries have doubt on two centimeters so centimeter pregnancy care what will be the self per second chapter bus stop crossword say we understood that it has been taken to zero in chatting in the beginning take it out from English are you understanding this thing after 10 years means what does he want to tell you he wants to tell you with whom it has happened sometime he wants to tell that's why I took it with you So you will have to use heroine, how long do you have to run it, run it for three seconds, that means

15:44 how much time do you have to keep, free seconds do you have to keep, make a diagram inside every question, feed Chaitra and tell me, it should be beautiful gram ghee, it should look beautiful, you should keep it, but a diagram brings clarity, visualization increases, what thing is to be given in the question, what is to be taken out, that's why I say that you should watch cartoons, children should definitely watch cartoons, they should not be forbidden from watching cartoons, parents should not show them cartoons, your visualization increases a little more from it, you should watch animation, you should watch cartoons, you should watch animated movies, science fiction should be watched to a certain extent, not too much, my mind gets disturbed by watching science fiction, I do n't get disturbed by watching it, I have to watch it after watching it, but okay, okay

16:31 Khaira, but will be hits a velocity, that is, I am asking the finalists later how much will it go, if it comes out to be a giver, then like I have seen the answer, still once keeping your safety and security in mind, I will write life, how to centimeter per second square time is in seconds, I will also appoint you ok keep it tell me after looking at these four for 5 seconds tell me which one is different which one is different this first second and third look in second and third it comes like this he said displacement comes do I have to find out displacement here I will not only apply it I will stay dry you will apply the first thing you will stay happy apply candy crush what is the first question the first question is no if it is not

17:16 veer is equal to you plus the first question of the back find out the answer put cross see yoga baja will cry this much it is to be how much is that time time was 930 president is it okay then how much for second son 326 but one thing to pay attention to is the unit here is the settings on centimetres so you also give the answer in centimetres president that answer ok your answer is okay right if he asks a question in Hindi then answer in Hindi if he asks a question in English then answer in English he asked a question on settings on centimetres so I will give the answer is yes in centimetres president it is

18:02 tit for tat do the question While solving the question, okay let's move ahead, it's a racing car with uniform acceleration of and second square per meter, okay, he told the acceleration, how much and second square per meter, what distance will the vehicle cover, what distance will it cover, he said displacement, how much distance will that car cover, let's come, displacement is for us, within one demotion, that chapter number 8, distance and displacement are the same thing in these questions because we take tuitions, we are dealing with State Bank, so if we walk in a straight line, then distance marriage, this displacement, if you are coming back then it's a different

18:48 matter, if you come back then there will be a problem, if you come back, then distance will not be one thing, but when I am going from here to here, from one point to another, there are no side effects, okay, but distance later and intense pain after the after 10 start, look, what is he asking, so what is it, it is zero, how much time 10 seconds You tell me yourself after seeing these four what question is coming to your mind, has n't it come many such is equal to beauty plus half acidity square foot cross take out the acidity take out the

19:33 dandruff no matter how much time is given what difference does it make plus half one is this much four that time will make a difference even chop of 10 seconds 10 seconds have to be given to the children this has started cut it from two two packets will go more than ton ton meter has come in so how far will the racing car go children friends it will go meter far what to do like this it is simple very simple sixth look then apply pressure to size see the brake is being applied brake is being applied tuition acceleration of fixed meter per second square in opposite direction will say a lot of things in one line

20:18 said a lot in one breath hmm right what will be the celebration the celebration that you are feeling is you seem to be in seduction - don't come without putting a sign which is also happening retardation check check check what is happening that Retardation is happening, that means what will have to be taken - second courier will have to be taken at six meters, children, right, in the opposite direction and this breakup, you are understanding this Sahiba, this breakup is happening, that means the car will move forward but someone will be pulling it back, the rear wheel will be reoriented, friction will be created, that traction will pull the car back, so pulling it back means negative force will be applied in the south and in meditation, the decision will also be applied in the track protection, I am talking about this often, but what has been taken here, negative has been taken

21:04 because the direction of positive negative side means opposite direction, negative direction means meditation means opposite direction, south is opposite, the text to setting stop stop stop has been done, see a small sub is written stop and know what does stop mean, this top means that you have understood son this key points add, right, this key, you can open the locks with these small keys, by the way stop is written, it means that this car will go forward what has to happen stop know how much time has to pass it has to go in 2 seconds so it takes seconds and this vehicle will stop okay after application updates calculate distance distance and

21:52 travels during this time brother I am asking how much distance it will cover how much distance it will cover okay what should I do what should I do if these four are combined then any question is formed right if these four are combined then even a single question is not formed SBT question is also formed what should I do what should I do without removing u my work will not be done without removing u anyway I will have to remove it so tell me one thing what should I do first to remove this what should I do to remove u to remove u I will take the help of these three I will take the help of these three

22:37 and I will put the first question which b is equal to u plus seth this will put the first question from the first question is equal to university I will keep b 0 I don't know I want this uno plus question son - 6 I want - 6 time How much time is there to two ji time is there to two ji this will go you - 12 is equal to zero take a round cigarette and minus plus minus it will become - 12 will go here so this will become plus twelve my u has come out now I am half happy more happiness and whatever is left I will get by taking it out like this how will I get it like this is equal to beauty plus one

23:25 128 yosimate here if I want I can also put some question if I come then I can also put some question from it this will come out so it is your wish if you want to do it from home do it quickly okay I will put it and find out the answer like this is equal to two children how much did you take out just now 12 time how much is 2 seconds 2 seconds plus one and two how much is the expression oh tell me - 6 - 6 time how much brother two tightens if two tightens then it will be 12024 so one is subtracted from two one is left so - 12 is 1612 right it will be set in 2004 12:00 I drove, the meter finished, it will run this much before the car stops

24:13 or the answer is there or solve the answer by yourself, okay after seeing it, if you have seen the solution, then come back and call, learn the approach, keep the question only, otherwise approach to approach, how to proceed, the question center, okay, in this way, dig out things from the question, okay, work with that water, now the phone is polished, gently dropped from the hill top 20 meters, see children, this question is about free fall, this question is about free fall, but we will discuss the free fall inside the railway station, okay and gravitation, so for now, what for now, this thing is given, we will see it with the effort of motion, okay, we will

24:59 deal with it according to some motion, okay, there is a boil which has been gently cropped, son, do you know the meaning of gently dropping, no one will tell you, but the meaning of entry drop is that you have You have released the thing, you have not hit it by throwing it down, you have not thrown the thing, you have to blast that thing downwards, you have to release it, you have to release it, okay, release it yourself, as soon as you release it, whatever you do with it, it will go from zero ball city down, that means it will be released from your hand from zero, after that it will The power will keep increasing, understand that the way you will

25:45 leave the thing, like after leaving it, at that time his daughters, what is the duration of your hand of any disease, zero app because Tulsi is what is not and leave the message, so set it from zero, the fall will be set from zero, then its speed will keep increasing, increasing, increasing, it happens like this, okay, so whenever we drop a thing in it, what do we do, we drop it, the jungle staff is clearly written, okay, so you have to take you zero meter per second, this is the first part of life, okay, the first place to find this life, what is the height, base meter height means how far will this ball come, how far will this ball come, this ball will go, say 20 meters, yes or no, say how far will it come, 20 meters, that means what is its displacement going to be, 20 meters, oh display is not like this, it can

26:35 also be like this, it can also be like this, behind as well as in front, here also, Ravi, there can be displacement on every side, so its displacement is going to fall, okay, as much as the ID will cover and it will come down The one which will come below the waist has displacement so what can I write its displacement the meter ahead is saying that its velocity is increasing uniformly at the rate of 10 meters per second square what is this given what is this given what is this given expression has increased if now how much acceleration is due in how much time in meter per second square acceleration is due then this has happened this has happened what is he asking saying with time

27:21 velocity blitz like jagran means it will fall on the eclipse with a thud what will be its speed what will be its final speed veer is asking from one side and I am asking something he is saying then we get time till when will it fall I have also asked the time so he is asking the time also not just asking the final velocity he is also asking the time both the items remain something then what to do think think that brother which question should we ask that ours also come out first let's talk about which After putting the question, ours will also come out, come son, let me tell you, hmm, we will put the

28:07 third question here, why are you Adithya, which composition is such, this is the question, two error is equal to b square minus, using this the approach will be made, first of all you should remember your nutrition, so you should remember the questions of living, who all come in the vacation, who all do not come, you should also know this, like if I don't get time here, then to spare time, I will not put this, if I want to spare time, then I can not put this, I don't have time, then from where brother, what is the benefit of the street deck of the house, what is the benefit of seeing the path to the destination, so I will not see this path because I don't need time, what do I need, so I needed a lot, that's why

28:54 I put the skillful one, now keep USA and other four things, USA and also keep, find the answer, just keep, find the answer * * acceleration is 20 displacement, so just keep one friend, what else I am doing I am going to keep final and city I don't know I don't know it is the initial last T20 it was gently dropped remember the phone ended to clean and 492 is equal to be square - ended by using dross it also came from here root 40 and learn to call roots children learn it is very useful without it

29:39 how will you do physics questions you do n't know how to call roots how will you work out tell me okay then you should know how to roll you have to find out the time that is okay now it's over now you have to find out the time now anyone can put the time in it I first put I first put the simple equation of being polluted city so in the first question I keep putting BC code to you plus eight and that time will end or how much is I also just found out 20 you how much is gently cropped Khusro excretion how much is Britain 10th and how much is financial time okay so the tenty is this cord hour or the time is cut 2

30:25 seconds it will go down within two seconds it will fall down within two seconds or the answer is to do work like this you have one more question about free fall free fall does not only mean falling down free fall also means that we have lifted the fruits up, lifting them up is also free fall and leave it put free fall that when we hand over something to gravity that I should go then it will be handed over to gravity okay don't you go to gravity so brother it is free fall then that is free fall if it is thrown on the knife okay or tea or if you want to leave it down so what are we doing here it is up do it these stones are not up it is not a good thing to do the stone should hit the head of the faculty let us do this kung fu puff here brother with

31:11 velocity of meter per second okay so the weather is starting from the bottom this time this time the weather is going due to lack of available resources it is going here that means this dam Velocity is initial, this velocity is initial because the weather started from here, this time when the weather becomes clear from here, the desire is there, that is, the UFO is five meters per second, what is it saying ahead, it is saying this the expression of the stone during its most entertaining meter per second Varinder Panwar direction means the matter is going upwards but the actual crush has been applied downwards, that's why the expression got negative, take directions Anuj, what are the other things here, I will make it more clear to you inside the gravitation chapter, why was negative taken here,

31:58 why was positive taken, later on, if you read about 181 system, then okay, if you go to sign tuition, then you will enjoy a lot, but till now understand that the matter is with the top, that bad weather has decreased, the motion has gone upwards, but often it is not looking good, hey, where did the gravity apply, it will feel downwards, it has got negative, okay, and it is also posing it, it is pausing its motion, you can understand, that's why the solution has gone to New Delhi, what will be the height Attend the stone deep, how much height will it take to turn the maximum light and how much time will it take to reach the top from there, that means you first have to find out the height, yes, find out the height and secondly tell the time, in how much time will it reach the top, it is a very simple question, friend, it is a very simple question, what do you have to do, what do you have to do, firstly you do not have to find out the

32:45 displacement, yes or no, what do you have to find out, children, find out the displacement, but tell me one thing, when will its maximum height be found, its maximum height will be found only when it would have turned upwards, right, it would have reached a point and would have become zero, it would have reached a point and become zero, here hidden V is given, there is a second per meter per second, without it the maximum cannot be removed, even think, if it is not a hero, it is the final decision, then stop, then you will find the height somewhere else, the opposition went up and stopped at some point or else you will have to accept it as zero, son, somewhere you will have to accept it as zero, only then will you get the height, only then will it be the maximum, it will be top ten,

33:32 that is why, one is asking about the displacement, he is asking about the time, he is asking about two items. Okay, you tell me, you tell me what sequence is formed by combining these four, I have a very beautiful question, which twos is equal to b square minus, use the support and find the answer, finish to go into a, how many children - 0, I don't know like this, I left how much is the score of zero, but how much is it, I threw it from below, I saw it from the flight, 571, the score of 5 is equal to zero - 502 - it will be - twos was taken out from here like this

34:20 - 25th in the pan - 20 - - cut 501 more, this is one and a quarter, this is one and a quarter meters, okay brother, everything is fine, right, this is the maximum, okay, this is white white time time time from here, this is and this is you baby, Krishna comes to me, which twos is equal to you plus eighth, at what height did the car stop, the

35:06 stone went, you are 5 - 1800, I don't know, so I wrote it exactly in reverse, okay, from here five came, from here - painting, zero from here Now this is here - by tenting it will become positivity is equal to five and from here it will be twinkled fiber divide divide 10 which will come by cutting one by two which will look very beautiful if you write point five sacred in decimal then the school madam will not get angry that the time given for displacement is understood, the dumbbell will reach the top by half, we are seeing the

35:54 mother nature of distance and graphical question, ray brothers what is the nature of distance time time graph and uniform uniform motion of tact brother you know this thing, I will solve one lesson of this part here, this uniform oregano inform to be a straight line graph of uniform it is below it has been connected, how is it a straight line straight line is a straight line displacement time displacement time and its crooked graph no information of uniform motion what will be the nature of the customer, okay it will be chord notes 10 what will be written chord because it will be absolutely dogra

36:42 no let's go the part is done but let's go We are also let's go on the part, let's go on the back, then the lesson what can you save them option and objectives distance time graph lattu timex at the bus stand is ok ok what is it saying, what is it saying is distance in time but I don't know what kind of motion was happening on the foot line with big time axis straight line lattu the time axis what kind of weather is this what kind of weather is this answer this is portion in this way this is rest time is increasing time is increasing time is increasing time but if it is but it is stuck in distance 20 meter 20 meter

37:28 20 meter 20 meter DC meter hi meter DC rich and children this is rest this is motion naa Bikaner's this so this has become a joke that I don't have any feelings but can you save mode turn off an object its peak time graph statement panel to the ok ok this time it is saying this mask speed time graph this time let's see if anyone respects our fans or not Seth again paneled and speed is time that is end displacement this is not displacement understood speed stop the speed is set

38:13 on the meter brother you will also get confused then I will also a speed time Rathore speed time is the top time axis on the graph okay you tell me the time increases the time increases the speed is stuck at the same speed the speed is stuck at the same speed it means motion is happening it means Vasant and every second even at one second the speed of 30 on 2 circles also the speed of 30 on three settings also means the speed is stuck at this speed papa was driving the scooter understand at this speed papa scooter ok so this is the question of papa scooter trend part time actress Jiya will not get lost in the left hand if

38:59 you answer this tempered glass its uniform motion is happening that papa does this information on Ajay okay so about this graph we can say this okay we can give our export to win this only this The graph of uniform motion is the fourth what is the quantity world jha and last time he asked a good question for the customers he asked a blasting graph graphical lecture in the camera you will have to see the graphical representation of motion then you will be able to understand what all I am doing so all these things are not a collection they will be colorful letters equal to buffaloes for you understood that's why you will have to see

39:46 now last time the area of the graph is being asked under it and we know that whenever the area comes out 2X it is multiplied there we type the activity there itself to withdraw means this last time the one who plays the mud gets threats by taking the vidmate the displacement is lost and multiplied so what do you get dish placement okay so when you * these two or come out inactive then what will you get this placement is its answer okay through department okay understand it children will get challenge a question brother came from the uniform circular motion lecture these three K3

40:31 notes are deep a body whose flesh is m.a. Which is running on a circular baat whose intention is clear, like you fry and what is the great way of changing momentum of the body, okay let's assume that its speed is given as any movie of circular path of radius of var with velocity, without that it will not work, how will momentum come out with velocity, okay, by the way, you will be able to understand better what is momentum in the chapter, but never mind, try to understand that you are on a circular baat, on a circular and you have to say that half the circular vessel has rotated, means right now it was here and the budget of the meat was running from VMC,

41:17 after hitting half, this brother must have gone here, what do you say, what do you say, just now the object was there, the blast velocity got jolted here, the values ​​on - will also happen or will not happen, the direction is changing, so velocity is also a vector quantity, so the direction of plastic has also changed, if there is glass TV, then here Avasthi - V ee two, okay and what is momentum Momentum is the multiplication of the Bible and the city. Momentum is the initial momentum. So these two will be the multiplication of the Bible and the final momentum will be

42:05 - MB Id. Okay, because m4v is not multiplied and - is being multiplied. So now I am asking you whether you have taken out the change in momentum. By the way, this question is related to force. And I was seeing this thing in the symptoms of circular motion in my channel. Okay, now the things that are there enter the force, you will jump from the weather and go into the force. Along with the motion, this force also gets set. The force starts within the circular motion of the machine. So that is done, but you were talking about check celebration centripetal force anti-vaccination in the previous section, so you will have to talk about momentum as well. Now the meaning of changes momentum is delta P L P. This is the

42:50 sign of change. The symbol of change is bottle P. And this means momentum final - momentum initial. Momentum is final - NV momentum initial heavy but here - in the affair of getting cancer - MB - entry will be made - 2MB this question is of anti-SC this question is of such a level it is of Olympiad level NCERT but it is not there no problem so what happened what did they have to learn what did they have to learn so what happened looted the first particle was like this half hit and parted was done first I was looking here like that if we check then it is seeing okay so find out the changes momentum you find out its change road so - 2nd will come okay

43:37 - to MP4 if he will ask you this married tell me then 2MB - comes for introduction - comes for protection so only 2MB answer is done its next let's go to the next let's go to the next particles moving on a circular path of radius paint is meter Denis displacement reaction square meter after completing his salvation for simple it is very simple to say that just one such What the hell is its radius 35 meters and by reading it let's go from the party tell me the truth tell me the displacement oh displacement so this initial point and these final points displacement how much is 35 35 how much is it 70 is it only oh this is its placement in how to give its

44:24 placement in this draw a straight line from initial to final both 35570 comes so 76 displacements first discussion will ask the answer should be okay let's do the rest let's see when the MP comes it doesn't come it will come by the way z is 10 meters right ok tell me is the semi-circle covering the whole circle sunny circle after completing the answer semi-circle ready for the semester how much will the circumference be Monday skin will tighten will decide brother friend no it is hidden friend how much is it friend so the distance is coming out this is the displacement this is the displacement came out abhisarike abhisarike how spy or 22.72 3575 through 110

45:18 rich and so that's why they claim that there is a player yes, the player covers circular five radio-4 back in 40 seconds, okay, okay, he covers a circular path whose radius is coming in about 40 seconds, the end of two minutes later in seconds, the displacement will be like this, we had asked this question in the form case also, now do one thing, find out its total time, first of all we will not even talk till then, before that find out its total time, its total time will come to 120 seconds plus 20 seconds, what do you say, you say 12060 plus two seconds, now listen to this carefully, one round in 40 seconds,

46:04 complete displacement, second round in 080 seconds, complete displacement, zero because it came back to the same place after turning, what happened, third round in 0120 seconds, displacement happened 0f, how much time is left, friend, first of all, what is the displacement, it is zero, how much time is left, twenty seconds, that means, brother, this player, after walking, Are you going to come from here to here or are you going to come from here to here, tell me yourself if this semi-circle has been running, if it is running at this time, then how much will the displacement be? Will this be the displacement? And how much is this? And how much is this? What did you

46:52 ask? How much is this? If it is coming, then it is coming, so combining both, you have done it. You have the R D answer. The D answer is the NCERT question. Okay children, we will discuss a lot of NCERT questions today, so I hope you guys must have learned to make an approach. See, there is a plethora of questions. In physics, questions can never end. That is why you have seen global cities, like Max, such tests, so the questions can never end. But there is a scope of the concept. The concept is sky constraint. It is related to WhatsApp. We have separated all the jewels. If you say average speed, then for average speed breaker, say equation of motion. For this I have done the

47:38 lyrics for circular motion, I have done the lyrics for graphical Roshan, okay, make the concept as firm as possible on it, how will you be able to make it firm on it, you will be able to make it firm on the text, okay, children should practice as much as possible, focus on NCERT and books around NCERT, don't go too high, okay, you have to hit the print, do not fly, you are not in the tent, you are not, you have to sprint, you have to travel short distances at high speed, let's meet next time, next round immediately with the law of motion, okay, thank you so much.