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A particle of mass 'm' is moving in circ...

A particle of mass 'm' is moving in circular path of constant radius 'r' such that centripetal acceleration is varying with time 't' `K^2rt^2` where K is a constant. The power delivered to the particle by the force acting on it is

A

`m^2K^2r^2t^2`

B

`mK^2r^2t`

C

`mK^2rt^2`

D

`mKr^2t`

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