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what is the magnitude of frictional force after perfect rolling begins and why?

what is the magnitude of frictional force after perfect rolling begins and why?

Grade:11

2 Answers

Prajwal kr
49 Points
9 years ago

Zero. The point of contact is instantaneously at rest.

vijay reddiar
30 Points
9 years ago

After pure rolling begins,frictional force is 0.

this is because the velocity of he contact point is 0 in case of pure rolling.

since there is no velocity at the contact,there is no friction

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