A body of mass `m` is acceleratad uniformaly from rest to a speed `v` in a time `T` . The instanseous power delivered to the body as a function of time is given by

Options

A. `(mv^(2))/T^(2) t`
B. `(mv^(2))/T^(2)t^(2)`
C. `1/2 (mv^(2))/T^(2) t`
D. `1/2(mv^(2))/T^(2) t^(2)`

Answer

A

Explanation

`f= ma = (mv)/T`
Instantaneous power P =`fv =(mv)/T` (at) `=(mv^(2))/T^(2) t`