My teacher assigned us a lab, where we use a resource called "skate park simulator" to come up with a question, and then the resulting formal lab report. It involves a skater on a half-pipe, but I think it could be simplified into the following: Basically, an explanation to this question will help me greatly (this is not the lab question) Will a ball rolling down a 3m high ramp have the same final kinetic energy as if it were just dropped from a height of 3m? To me, this doesn't make sense because the final velocities will be different in each scenario (E = 1/2mv2). If E = mgh, they should both have the same potential energy, and therefore the same mechanical energy. However, the ball at the bottom of the ramp should have a different velocity than the ball free-falling just before it hits the ground.