A body is initially at rest . It undergoesone - dimensional motion with constant acceleration .The powerdelivered to it at time t is proportional to

A body is initially at rest . It undergoesone - dimensional motion wit

1.	A body is initially at rest . It undergoesone - dimensional motion with constant acceleration .The powerdelivered to it at time t is proportional to
Answer» `t^(1/2)` t `t^(2/3)` `t^(2)` SOLUTION :t `P = (F)` (v) ` = (F) (F/m) t [ :. v = at = F/m t]` `=(F/m)^(2) MT` ` :. P = a^(2) mt ""` [ a and m are CONSTANT ] ` :. P prop t `