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A particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration `a_(c)` is varying with time t as `a_(c) = k^(2)rt^(2)`, where k is a constant. The power delivered to the particle by the forces acting on it is :A. `2 pimk^(2)r^(2)t`B. `mk^(2)r^(2)t`C. `1/3 mk^(4)r^(2)t^(5)`D. 0

Answer» Correct Answer - B


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