A body of mass $' m ',$ acceleration uniformly from rest to $'{v_1}'$ in time ${T}$. The instantaneous power delivered to the body as a function of time is given by
${{m{v_1}{t^2}} \over {{T}}}$
${{mv_1^2t} \over {T^2}}$
${{m{v_1}t} \over {{T}}}$
${{mv_1^2t} \over {{T}}}$
Solution
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