Question

A compact car can climb a hill in 10 s. The top of the hill is 30 m higher than the

bottom, and the car's mass is 1,000 kg What is the power output of the car?

Answer 1

29.4 kW

Step-by-step explanation:

time t = 10 s, height h = 30 m, mass m = 1,000 kg

power output = work done/time

work done = increase in potential energy = mgh = 1,000 * 9.8 * 30 = 294,000 J = 294 kJ

power output = 294/10 = 29.4 kW