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A body of mass m accelerates uniformly from rest to velocity `v_(0)` in time `t_(0)`. What is the instantaneous power delivered to the body when its velocity is `(v_(0))/(2)` ?A. `(mv_(0)^(2))/(4t_(0))`B. `(mv_(0)^(2))/(t_(0))`C. `(mv_(0)^(2))/(2t_(0))`D. None of the above |
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Answer» Correct Answer - C Acceleration `a = (v_(0))/(t_(0))` Force on the body `F = (mv_(0))/(t_(0))` Instantaneous Power `= P = (mv_(0))/(t_(0)) (v_(0))/(2) = (mv_(0)^(2))/(2t_(0))` |
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