Newton's 2nd Law

In this video, the creators made a song about the equation for Newton's 2nd Law of Motion; f=ma. They also had a few clips playing, trying to show how acceleration is directly proportional to force, and is inversely proportional to mass. In the beginning of this video, we are given an example of how this equation is applied when they ask us what force did the hockey player exert on the other to make him fall over. They then show us how to solve the equation on the screen, and move onto the next few clips, showing different things either falling, or bouncing off of another object.