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A body of mass 1kg is executing SHM give...

A body of mass 1kg is executing SHM given by `x=4cos(100t+pi/2)` cm what is the velocity ?

A

`200sin(100t+(pi)/(2))`

B

`-200sin(100t+(pi)/(2))`

C

`400sin(100t+(pi)/(2))`

D

`-400sin(100t+(pi)/(2))`

Text Solution

Verified by Experts

The correct Answer is:
D
Given `x=4cos(100t+(pi)/(2))`
Velocity `=(dx)/(dt)=-400sin(100t+pi/2)`
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