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A particle of mass m performs SHM along ...

A particle of mass m performs SHM along a straight line with frequency f and amplitude A:-

A

The average kinetic energy of the particle is zero

B

The average potential energy is `mpi^(2)f^(2)A^(2)`

C

The frequency of oscillation of kinetic energy is 2f

D

Velocity function leads acceleration by `pi//2`

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B, C
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