Power versus time graph for a given force is given below. Work done...

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Power versus time graph for a given force is given below. Work done by the force upto time
\( \mathrm{P} \) \( \mathrm{t}\left(\leq \mathrm{t}_{0}\right) \)

W
(1) First decreases then increases
(2) First increases then decreases
(3) Always increases
(4) Always decreases
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