A cart starts from rest on a smooth horizontal surface at

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

0.50\,\text{kg}

cart starts from rest on a smooth horizontal surface at

t=0

. A horizontal force acting on it varies with time as

F(t)=2t^{2}

N, where

t

is in seconds. The force acts for

3.0\,\text{s}

. Find the average power delivered to the cart during this interval.