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A body of mass 'm' and radius of gyratio...

A body of mass 'm' and radius of gyration 'K' is rotating with angular acceleration a. Then the torque acting on the body is

A

`1/2 mK^2 a `

B

`1/4 mK^2a`

C

`2 mK^2a`

D

`mK^2a`

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