A block is resting on a piston which executes simple harmonic motion with a period \( 2.0 \mathr...

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A block is resting on a piston which executes simple harmonic motion with a period \( 2.0 \mathrm{~s} \). The maximum velocity of the piston, at an amplitude just sufficient for the block to separate from the piston is
(1) \( 1.57 \mathrm{~ms}^{-1} \)
(2) \( 3.12 \mathrm{~ms}^{-1} \)
(3) \( 2.0 \mathrm{~ms}^{-1} \)
(4) \( 6.42 \mathrm{~ms}^{-1} \)
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