InterviewSolution
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InterviewSolution
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A body of mass `m` , accelerates uniform from rest to `v_(1)` in time `t_(1) ` . The instanencoes power delivered to the body as a finction of `t` isA. `(mv_0t)/(t_0)`B. `((mv_0^2)/(t_0))t`C. `((mv_0^2)/(t_0))`D. `((mv_0^2)/(t_0^2))t` |
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Answer» Correct Answer - D `v=u+atimpliesv_0=0+at_0impliesa=(v_0)/(t_0)` `v=u+at=0+(v_0)/(t_0)t` `F=ma=(mv_0)/(t_0)` `P=Fv=(mv_0)/(t_0)(v_0)/(t_0)t=((mv_0^2)/(t_0^2))` |
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