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Episode

Circus Physics: Centripetal Acceleration

Trick riders may just ride in circles, but that doesn't mean they aren't accelerating. Moving in a circle requires steady changes in direction. This is a form of acceleration directed inward, the same acceleration that we feel when going around bends in a car, and that holds us in our seat on the rollercoaster. In this video, you'll learn the basics of circular motion.
Aired: 5/31/2010 | 0:02:12
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