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An impulse J is applied on a ring of mas...

An impulse `J` is applied on a ring of mass `m` along a line passing through its centre `O`. The ring is placed on a rough horizontal surface. The linear velocity of centre of ring once it starts rolling without slipping is

A

J/m

B

`(J)/(2m)`

C

`(J)/(4m)`

D

`(J)/(3m)`

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The correct Answer is:
B
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