A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in gravitational potential energy. What conclusions can you draw from this?

2. Potential Energy is only stored in a system when... (How to finish it off)

You're going to need a mass. get h from 10 sinθ.