- Potential energy of an object is determined by the mass and the height of the object
- A roller coaster is a kind of object
- So, potential energy of the roller coaster is determined by its mass and its height

- Potential energy of the roller coaster is determined by its mass and its height
- The height of a roller coaster car is known
- So, if we know the mass of the roller coaster, then we can determine the potential energy of the rollar coaster

Hence, if we know the mass of the roller coaster, then we can determine the potential energy of the rollar coaster
An engineer must calculate the potential energy of a roller coaster car at the top of an incline. Which information would best help the engineer determine the potential energy of the car?
- Potential energy of an object is determined by the mass and the height of the object 
- A roller coaster is a kind of object 
- The height of a roller coaster car is known