A 500-kg roller coaster car travels with some initial velocity along a track that is 5 m above the ground. The car goes down a small hill and then coasts back up a higher hill. The second hill is 12 m above the ground. What must the initial velocity of the car be for the car to be going 3 m/s at the top of the second hill?

Answer rating: 100% (QA)

To solve this problem we can use the principle of conservation of energy At the top of the second hi... View the full answer