Change in Potential Energy Worksheet 1. A 7. 3 kg gallon paint can is lifted 1. 78 meters vertically to a shelf. What is the change in potential energy of the paint can? 2. A roller coaster car of mass 465 kg rolls up a hill with a vertical height of 75 m from the ground. What is the change in potential energy relative to the ground? 3. If the car in problem #2 starts at rest from the height of 75 m, what will its speed be when it is 5 meters from the ground? What is the change in potential energy relative to the ground? What is the change in kinetic energy relative to the ground? 4.The same roller coaster car in problem #2 rolls down a vertical height of 40 m from the ground. What is the change in potential energy relative to the ground? 5. A 783 kg elevator rises straight up 164 meters. What is the change in potential energy of the elevator relative to the ground? 6. A car coasts 62. 2 meters along a hill that makes a 28. 3° angle with the ground. If the car's mass is 1234 kg, then what is the change in potential energy? 7.
