PhyFl18–SS2.2.12A One way to figure out which class got closest to the truth (in other words, who was the most accurate) is to look at what the acceleration should have been theoretically and then see what each classes acceleration really was. THis FBD of the forces acting on the ball will lead us to the correct theoretical value for acceleration. We will do lots of these FBD later in the year. They come in pretty handy.

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