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A body revolves n times in a circle of r...

A body revolves n times in a circle of radius `pi` cm in one minute. Its linear veloity is

A

`(60)/(2n) cm//s`

B

`(2n)/(60) cm//s`

C

`(2 pi^2n)/(60) cm//s`

D

`(60)/(2pi^2) cm//s`

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