To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it.

UFM L1 Movie 1: Cart given quick shove along smooth (low-friction) track

UFM L1 Movie 2: Cart given gentle taps as it moves along track, with speed-time graph

UFM L1 Movie 3: Same as Movie 2, with both speed-time and force-time graphs

UFM L1 Movie 4: Simulation of cart being given gentle taps as it moves, with graphs