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Assertion: A ring is rolling without sli...

Assertion: A ring is rolling without slipping on a rough ground. It strikes elastically with a smooth wall as shown in figure. Ring will stop after some time while travelling in opposite direction.
Reason: After impact net angular momentum about an axis passing through bottommost point and perpendicular to plane of paper is zero.

A

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

If assertion is true, but the reaction is false.

D

If assertion is false but the reason is true.

Text Solution

Verified by Experts

In second figure. Net angular momentum about bottommost axis
`L=mvR-I_(C)omega`
`=mvR-(mr^(2))((v)/(R))`
`=0`
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