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
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(a) $a = 10 \times {10^{ - 2}}m$ and $\omega = 10\;rad/sec$
${A_{\max }} = {\omega ^2}a = 10 \times {10^{ - 2}} \times {10^2} = 10\;m/{\sec ^2}$
${A_{\max }} = {\omega ^2}a = 10 \times {10^{ - 2}} \times {10^2} = 10\;m/{\sec ^2}$
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