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PURPOSE: To show qualitatively an example of non-conservation of angular momentum.
DESCRIPTION: The speed of the rotating puck increases as the radius of the path decreases. Angular momentum is not conserved because the force is not central.
SUGGESTIONS: The air table is only available in rooms 1410, 1412, and 0405 because it will not fit through a standard door.
REFERENCES: None. (PIRA unknown.)
EQUIPMENT: Air table with tetherball attachment.
SETUP TIME: 10 min.
