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A block of metal weighing \( 2 \mathrm{~kg} \) is resting on a frictionless plane. It is struck by a jet releasing water
\( \mathrm{P} \) at a rate of \( 1 \mathrm{~kg} / \mathrm{sec} \) and at a speed of \( 5 \mathrm{~m} / \mathrm{sec} \). The

W initial acceleration of the block will be.
(1) \( 2.5 \mathrm{~m} / \mathrm{sec}^{2} \)
(2) \( 5.0 \mathrm{~m} / \mathrm{sec}^{2} \)
(3) \( 10 \mathrm{~m} / \mathrm{sec}^{2} \)
(4) None of the above
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