8.01SC | Fall 2016 | Undergraduate

Classical Mechanics

Week 3: Circular Motion

11.3 Demo: Rotating Bucket

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In this demo, a bucket full of ping pong balls is rotated vertically fast enough so that the balls stay in the bucket. Slowing down below a certain speed, or simply holding the bucket upside down will cause the balls to fall. This can be explained using Newton’s second law and the physics of circular motion.

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