Jessie exerted a force of 400N to move a box across the floor to a distance of5m in 4sec. What is his power is kilowatts? Megawatts? Horsepower?

Answer 1

P = F * d/t = 400 * 5/4 = 500 Watts =
0.500 Kw = 5*10^-4 Megawatts.

Answer 2

Hp = 500Watts/746Watts/Hp = 0.67.