There are three experiments, the first is three different size balls (basketball, "super bounce" ball, and a golf ball) are all stacked on top of each other then dropped; next we have 4 balls on a ramp that is slightly "U" shaped, after the first ball is dropped one of the 4 balls moves slightly, then after another ball is dropped, the ball on the ramp then flies off the ramp; lastly three neodymium magnets are positioned next to three steel balls each on a plastic rail, a loose ball is rolled gently to the first set and knocks over a can that's at the end (which is similar to experiment 2 but slightly different). How do the physics work in these experiments and what does linear motion have to do with any of these experiments? Video link of the experiments are below if my explanation of them did not make sense. https://youtu.be/2UHS883_P60 https://youtu.be/NzjNmGRwWDA https://youtu.be/u-brtEFnlo4