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Thank u sir. Ur one of the best. It really feels better than school.

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Q1 .a-elastic energy b-kinetic energy c-gravitation due to accelerate d-kinetic energy Q2-given M-500g--500÷1000----0.5kg H-1m g-10 Soln. P.E=mgh = 0.5×1×10 =5j Q3 Both boys Aand B Have same P.E has they both reaches same hight

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11:38 Answer: 1. (a) Elastic (b) Potential (c) Gravitational (d) Kinetic 2.( 500/1000)kg*1m*9.8 =4.9J 3. Both have same potential energy, because it does not depends on path. Thank u sir.🤘😎

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ANSWERS: 1. Potential Energy and Kinetic energy 2. PE=M×G×H PE=0.5 Kg(500g) × 10m/s²(Gravitational force on Earth is 10m/s²) × 1m PE=0.5 × 10 × 1 PE=5 J 3. Both the boys will have the same potential energy as both of them have the same mass. The path taken to reach the first floor does not matter. So, the height also remains the same. Both of them are on Earth. So, the gravity is the same. Thankyou!

The form of Energy are: 1. Elastic potential to Combined Potential and Kinetic Energy going up, when it reaches the topmost part and has its sudden stop before dropping is Potential Energy, and while dropping it again acquires Potential and Kinetic Energy. Finally, when it lands and stop moving, its KE and PE are zero and assumes now Rest Energy. 2. 5 Joules 3. The boy who is in the escalator will reach the the first floor first and so his PE compared to the boy who took the stair will be more than the PE of the stair boy. however, when he also reached the same height of the escalator boy, both of them would have the same PE by then.

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The only topic I understood yet in full chapter. But I swear, a feeling if satisfaction when I opened book after seeing this video🤯🤯🤯. Thank you for the clarity sir.🤐👌👌👌👌👌👌👌

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Q1: A: Elastic potential energy ( the spring) B: since the ball falls from a height to the table and the ball slows down as it goes up it is Gravitational potential energy C: as we said in part B the ball slowed down as it went up so height increased. Now in part C the height is decreasing so kinetic energy Sorry if you didn’t get my explanation Q2: PE = mgh = 0.5kg * 9.8m/s * 1m = 4.9 joules ( J ) Q3: I agree with most of the others we need to know which one is higher the elevator or stairs? But let’s just assume they are the same so same potential energy

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I'm italian and in these days I had searched a lot of video about these arguments and with this video i have finally understood everything, thank you so much

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Incredible video of a concept my teachers continuously failed to explain!

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Good videos! A couple of details: 1. The gravitational potential energy is not exactly “inside” the hammer.. if we look inside it would be identical to before (elastic energy can be said to be inside the rubber band..looking inside the molecules will be adjusted in various ways). We can imagine some kind of invisible force field between Earth and hammer and so the gravitational energy is stored in this empty space between and nearby. 2. The work energy done by the force depends on only the relatively small displacements of the projectiles meanwhile the force is acting when in contact with the pushing elastic, and is not related to the large distances moved by the projectiles. Once clear of the pushing elastic no more energy is given to projectile of course.

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you are the best teacher from many days i was having the confusion, but the way you explained is just awesome and your english is so fluent and it can be understood, my fav yt channel.

Q.1.(a) totally Elastic Potential Energy. (b) Gravitational P.E due to hieght. (c)P.E changes into K.E during down ward motion.But just before it hit the ground,the enrgy was entirely K.E. (d) P.F and K.E both becme zero as it hit the ground. Q.2. (5J) Q.no.3 They will have Equal P.E because it does not depend on the path followed But on the Hieght.

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I wish we had KZfaq back in 2014. If we had such teachers back then i would have been an engineer now. I chose science in my higher classes as i loved learning it.. Unfortunately in state boards our teachers only let us cram to score good because thats what actually matters in our education culture. I am preparing for competitive exams now for which i am watching your videos. I feel so bad kyunki science graduate hone k bavjuud bhi science se zyada acha hold i have in general studies ..... definitions sb cram hai equations etc..... lekin when it comes to practicals it is zero. Thanks to you for making such useful content . You are doing a wonderful job sir ..God bless.❤

Thanks sir. I understand the topic clearly now and all the concepts.

Crystal clear explanation and crystal clear concepts

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Finally I understood the concept of potential energy⚡

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Saw many explanations of potential energy on KZfaq, but yours was the best! Very intuitive and easy to understand. Thank you very much🙏

HOMEWORK: Answer 1: (a) Potential energy as there is a change in configuration. (b) Potential energy as the ball is on a height. (c) Kinetic energy as it is falling (d) Potential energy as again it was on a height from the reference (i.e. the table) Answer 2 :(500g)(0.001kg)(10m/s^2)(1m)= 5 J Answer 3 :Both of them will get the same potential energy on reaching the top As potential energy depends on height to which a object reach not the way in which it come , if it comes to the same height as of th other one the potential energy will be equal of both of them..... BTW sir you are a very great teacher and an angel for me thanks a lot for this video I have understood all the concepts...Thanks a lot and please bring super amazing videos like this .... Regards: --- Naman Belwal ---

1 a) elastic potential energy b) gravitational potential energy c) kinetic energy d) sound energy 2) 5J 3) same becuz no depend on pati only hight potential energy depends

I have always thought real life examples helped a ton with understanding principles !! Thank you so much !! you are awesome!

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1a.elastic potential energy b.gravitational potential energy c.kinetic energy d.kinetic energy 2. 5 joule 3.both are same Sir i like your videos very much it clears all my doubts about physics Sir please do reply

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thanks the concept of energy is clear for me now

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A)elastic potential then gravitational then kinetic then it comes to rest and no energy B)500g/1000kg = 0.5 0.5kgx1mx9.81m/s^2 =4.9 J C)there is no difference in potential energy since it doesn't depend on the path and rather it depends on the height

OUTSTANDING EXPLANATION SIR

Set into brain 🧠. Thank you sir. You gave feel of the potential energy.

Thank you!

(a) elastic potential energy (b) gravitational potential energy (c) potential energy (d)Kinetic energy 2.P.E=mgh m=0.500kg g=9.8m/s² h=1m P.E=0.500×1×9.8 P.E=4.9J 3.the same potential energy

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Thank you sir , it helped me a lot .

आप ऐसे ही चीजों को आसानी से समझाते जाइए.... god bless you 🤠

Yes I loved this video I am byjus student but there about this topic there is not perfect but I understood very well in this class tq soo much sir😊

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Sir if we take a ball at a height of 4m and it comes at 3m. Here,will we take height as 1m(displacement) or just 3m ?

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2ans- p=mgh M=500g M=0.5 kg g= 10 m/s^2 P= 0.5×10×1 P=5 joule 3 ans is-both have same energy because they are both at same height.

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1) Elastic potential Energy 2) W= mgh = 0.5 × 10 × 1 = 5 J 3) Both are reach in same time , because energy is independent of path it is only depends on the distance ( s)

Sir How can a body store potential energy in it?

Thank you very much 🙏🏻

Thank you so much sir. Very useful video.

Thank sir I first time understood the topic.

1-EPE,GPE,KE,GPE 2-5J 3-potential energy depends on height not on path therefore they have equal amount of potential energy😶

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Thank u so much sir , this video really help me

Q1 - (a) Potential energy (b) Potential energy (c) Kinetic energy (d) Kinetic energy Q2 - 5 J Q3 - Both have the same Potential energy

Thank you very nice explained.

Very helpful... Thank you sir

q1: a, Elastic potential energy as the spring had the potential to create energy or work. b, gravitational potential energy as the ball was at a certain height. c, kinetic energy as the ball is in motion. d, kinetic energy as again the ball is in motion. q2: if i take the value of g to be 9.8 then answer is 4.9 joules = 4.9 j q3: According to the situation we know the height is directly proportional to potential energy so greater is the height greater is the potential energy but in this question it is not mentioned weather the stairs are at a greater height or the elevator, usually in a building both the stairs and the elevator are at the same height so we can say that since both have same height both will have same potential energy.