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If x = a cos t is the displacement in ti...

If x = a cos t is the displacement in time t then, acceleration is :

A

a cos t

B

` - a cos t`

C

a sin t

D

`- a sin t `

Text Solution

Verified by Experts

The correct Answer is:
B
`v = (d)/(dt) (cost)= - a sin t `
`a = (d)/(dt) (-a sin t) = - a cos t`
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