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` is

Options

A. `(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`

Answer

D

Explanation

`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))`