The spring shown in the figure has a natural length of \( 1 \mathrm{~m} \). What is the initial ...

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The spring shown in the figure has a natural length of \( 1 \mathrm{~m} \).
What is the initial acceleration (in \( \mathrm{cm} / \mathrm{sec}^{2} \) ) of the block when released?
(a) \( 700 \mathrm{~cm} / \mathrm{s}^{2} \)
(b) \( 70 \mathrm{~cm} / \mathrm{s}^{2} \)
(c) \( 0.7 \mathrm{~cm} / \mathrm{s}^{2} \)
(d) \( 140 \mathrm{~cm} / \mathrm{s}^{2} \)
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