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Question

A body of mass 5 kg starts from rest and moves in a straight line under the influence of two variable forces F1=(10t+6t) N and F2=(156t) N, acting in same direction. Find the power delivered by force F1 at t=2 sec.

A
130 J/s
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B
230 J/s
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C
30 J/s
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D
350 J/s
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