Question

An object has a gravitational potential energy of 72250 J and a mass of 425kg. How high is it above the ground?

Answer 1

Potential energy (PE) = m g h

Where:

m = mass = 425 kg

g = gravity = 9.8 m/s2

h = height

PE = 72250J

Replacing:

72250 J = 425 kg * 9.8 m/s^2 * h

Solve for H

72250 J/ (425 kg * 9.8 m/s^2) = h

h = 17.35 m