The equation for the displacement of a particle executing SHM is `y={5 sin pi t}cm`. Find
the velocity at 3cm from the mean position,
acceleration after `0.5` s after leaving the mean position.

Options

A. `3pi cm s^(-1)` zero
B. `6pi cms^(-1),5pi^(2) cm.s^(-2)`
C. `4picm s^(-1), 5pi^(2)cm.s^(-2)`
D. `2picm s^(-1)`, zero

Answer

C