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Question

A particle of mass 2 kg is moving in xy plane under the action of a force. Its velocity and acceleration at a certain instant of time are given by v=(3^i+4^j) m/s and a=(5^i+4^j) m/s2. Find the power delivered by the force at that instant of time.

A
60 W
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B
62 W
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C
64 W
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D
66 W
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