Assertion : In extreme position of a particle executing S.H.M., both velocity and acceleration are zero.
Reason : In S.H.M., acceleration always acts towards mean position.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Answer

D

Explanation

In simple harmonic motion the velocity is given by, `v=omegasqrt(a^(2)-y^(2))` at extreme position, `y=a`.
`therefore v=0`.
But acceleration `A=-omega^(2)a`, which is maximum at extreme position.