Sitting in a chairlift, Rebecca has a gravitational potential energy of 5,997.6 J. If Rebecca has a mass of 51 kg, how high off the ground is the lift?

Answer 1

PE = mgh, so

51*g*h = 5997.6

You know g, so now find h.

Answer 2

5997.6 = m g h = 51 * 9.81 * h
h = 12 meters