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Friction | Exercise

Question 56

A father and son pushed their car to bring it to the side of road as it had stalled in the middle of the road. They experienced that although they had to push with all their might initially to move the car, the push required to keep the car rolling was smaller, once the car started rolling. Explain.

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  • Solution

  • Transcript

Because initially they had to apply force to set the card in motion but once the car started rolling, they had to apply force only to balance rolling friction of the car, the value of which is very less.

"hey kids welcome to lido q a video i am vinit your leto tutor glad to bring you this question on your screen a father and son pushed their car to bring it to the side of a road as it had stalled in the middle of the road they experienced that although they had to push with all their might initially to move the car the push required to keep the car rolling was smaller once the car started rolling explain initially they had to apply force to set the car in motion but once the car started moving they had to apply force to balance the rolling friction of the car rolling friction of the car which is very small very small hence the observation if you still have a doubt please leave a comment below do like the video and subscribe to our channel i'll see you in our next video until then bye kids keep practicing "

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Our top 5% students will be awarded a special scholarship to Lido.

subject-cta

Question 56

A father and son pushed their car to bring it to the side of road as it had stalled in the middle of the road. They experienced that although they had to push with all their might initially to move the car, the push required to keep the car rolling was smaller, once the car started rolling. Explain.

  • Solution

  • Transcript

Because initially they had to apply force to set the card in motion but once the car started rolling, they had to apply force only to balance rolling friction of the car, the value of which is very less.

"hey kids welcome to lido q a video i am vinit your leto tutor glad to bring you this question on your screen a father and son pushed their car to bring it to the side of a road as it had stalled in the middle of the road they experienced that although they had to push with all their might initially to move the car the push required to keep the car rolling was smaller once the car started rolling explain initially they had to apply force to set the car in motion but once the car started moving they had to apply force to balance the rolling friction of the car rolling friction of the car which is very small very small hence the observation if you still have a doubt please leave a comment below do like the video and subscribe to our channel i'll see you in our next video until then bye kids keep practicing "

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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