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The position x of particle moving along x-axis varies with time t as `x=Asin(omegat)` where A and `omega` are positive constants. The acceleration a of particle varies with its position (x) as

A

`a = - omega X^2`

B

`a = - omega^2 X^3`

C

`a = omega^2 A`

D

`a = -omega^2 X`

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The correct Answer is:
D
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