Question:
A person is painting his house walls. He stands on a ladder with a bucket containing paint in one hand and a brush in other. Suddenly the bucket slips from his hand and falls down on the floor. If the bucket with the paint had a mass of $6.0 \mathrm{~kg}$ and was at a height of $2.0 \mathrm{~m}$ at the time it slipped, how much gravitational potential energy is lost together with the paint?
Solution:
