$A$ $0.10\, kg$ 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?

  • A
    $10\, m/s^2$
  • B
    $10\pi\, m/s^2$
  • C
    $5\pi\, m/s^2$
  • D
    $3.33\pi\, m/s^2$

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