1. On a 3m ledge, a rock is laying at the potential energy of 120 J. What will be the mass of the rock.
2.A cat had climbed at the top of the tree. The Tree is 20 meters high and the cat weighs 6kg. How much potential energy does the cat have?
3. A man climbs to a wall that is 3.6m high and gains 2268J of potential energy. What is the mass of the man?
4. A box has a mass of 5.8kg. The box is lifted from the garage floor and placed on a shelf. If the box gains 145J of Potential Energy, how high is the shelf?
5. A boy is carrying a bucket of water of mass 5 Kg. If he does 500 J of work, to what height will he raise it?

Energy Math Problems