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

A particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration ac is varying with time t as `a_c = k^2rt^2`, where k is a constant. Calculate the power delivered to the particle by the force acting on it.

A

`2pimK^(2)r^(2)t`

B

`mk^(2)r^(2)t`

C

`(mK^(4)r^(2)t^(5))//3`

D

`0`

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The correct Answer is:
B
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