The next time you are at an amusement park you may want to consider all the interesting math problems you could do! Using trigonometric ratios, some logic and algebra, Sal solves a problem in this video of finding a person's height off the ground at any given time while riding a Ferris wheel. This might also be an interesting problem for learners to graph to see how the function is sinusoidal and how the problem can be adjusted to change the amplitude and period of the graph.