A 30-kg person walks from the ground to the roof of a 14.8 m tall building. How much gravitational potential energy does she have at the top of the building?

Question

PE = m x g x h

4,351.2 J

444 J

45.31 J

3,017 J

Answer 1

PE = 30 kg x 9.8 m/s^2 x 14.8 m = 4,351.2 J

Therefore, the person has 4,351.2 J of gravitational potential energy at the top of the building.