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Beginning Math and Physics for Game Programmers by Wendy Stahler

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Chapter 14. Rotational Motion

KEY TOPICS

The preceding chapter discussed linear (head-on) collisions. By now, you might be wondering about all the other collisions in which two objects hit off-center. Think about the last time you played pool. Even when you wanted the cue ball to hit dead center, how often did that really happen? Most times the balls hit off-center, which not only causes them to move off in different directions but also forces them to spin. As you investigate further, you'll find that there are two parts to the collision response. The linear part causes a translation in which the object moves in a different direction. The other part causes rotation as a result of being hit off-center. You already ...

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