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A ball is thrown down a lawn in such a w...

A ball is thrown down a lawn in such a way that it initially slides with a speed `v_(0)` without rolling. It gradually picks up rotational motion. Prove that it will be without sliding, that is, its motion will be pure rolling when its speed falls to `5/7v_(0)`.

A

`2/7v_(0)`

B

`3/7v_(0)`

C

`5/7v_(0)`

D

`7/5v_(0)`

Text Solution

Verified by Experts

The correct Answer is:
C
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