(Solved): Potential energy Example: A 1000 kg roller-coaster car moves from point 1 to point 2 , then to point ...

Potential energy Example: A 1000 kg roller-coaster car moves from point 1 to point 2 , then to point 3 . (a) What is the gravitational potential energy at 2 and 3 relative to point \( 1\left(y_{1}=0\right) \) ? (b) What is the change in potential energy when the car goes from point 2 to point 3 ? (c) Repeat parts (a) and (b) but take the reference point to be at point \( 3\left(y_{3}=0\right) \).