Q 1326123971.     If the velocity of a spring mass system which starts from zero is given by `6 sin(4t)` then its amplitude of displacement and accelerations are

A

`5 & 3`

B

`1.5 & 24`

C

`15 & 1.67`

D

`15 & 3`

HINT

Displacement `= frac{6}{4}(1 - cos 4t)` and acceleration `= 24 cos 4t`
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