Q.

The variation of kinetic energy (KE) of a particle executing simple harmonic motion with the displacement (x), starting from mean position to extreme position (A),  is given by    [2023]

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Ans.

(4)

For a particle executing SHM

KE=12mω2(A2-x2)

When x=0, KE is maximum and when x=A, KE is zero, and the KE vs x graph is parabolic.