Oscillations

Question: The displacement of a particle moving in S.H.M. at any instant is given by $y=a\sin \omega t$. The acceleration after time $t=\frac{T}{4}$ is (where T is the time period)



1) $a\omega $
2) $-a\omega $
3) $a{{\omega }^{2}}$
4) $-a{{\omega }^{2}}$
Solution: Explanation: No Explanation
Acceleration of SHM

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