Answer:
800 W
Explanation:
Power is the rate at which work is done. That is, time taken to do a certain amount of work.
Mathematically, power = work done ÷ time taken
But work done = force × distance/displacement
Then work done = 200 N x 8 m = 1600 Nm = 1600 J (since 1 Nm = 1 J)
So power = 1600 J ÷ 2 s = 800 Js^(-1) = 800 W (since 1 Js^(-1) = 1 W).
