Question

Calculate the gravitational potential energy of a 95 kg rock at the top of a 45 m

cliff. The acceleration due to gravity is 9.8 m/s2.

Answer 1

Gravitational potential energy = (mass) x (gravity) x (height)

U = (95 kg) x (9.8 m/s^2) x (45 m)

U = 41,895 joules