Work done in time $t$ on a body of mass $m$ which is accelerated from rest to a speed $v$ in time $t_1$ as a function of time $t$ is given by
Work done in time $t$ on a body of mass $m$ which is accelerated from rest to a speed $v$ in time $t_1$ as a function of time $t$ is given by
- A
$\frac{1}{2}m\frac{v}{{{t_1}}}\,{t^2}$
- B
$m\frac{v}{{{t_1}}}\,{t^2}$
- C
$\frac{1}{2}{\left( {\frac{{mv}}{{{t_1}}}} \right)^2}\,{t^2}$
- D
$\frac{1}{2}m\frac{{{v^2}}}{{t_1^2}}\,{t^2}$
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