Oscillations

Question: A $0.10 kg$ block oscillates back and forth along a horizontal surface. Its displacement from the origin is given by: $x=(10\,cm)\cos [(10\,rad/s)\,t+\pi /2\,rad]$. What is the maximum acceleration experienced by the block



1) $10\,\,m/{{s}^{2}}$
2) $10\,\pi \,m/{{s}^{2}}$
3) $\frac{10\pi }{2}\,m/{{s}^{2}}$
4) $\frac{10\pi }{3}\,m/{{s}^{2}}$
Solution: Explanation: No Explanation
Acceleration of SHM

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