Designed for use in a calculus‐based introductory physics laboratory, apparatus consisting of a metal disk rotating on a fixed axis has been instrumented with a commercial rotary encoder and a PET microcomputer. The angular velocity of the wheel is continuously monitored and logged by the computer, providing data for detailed study of applied torques, friction, and the collision of the rotating disk with objects dropped upon it.
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© 1983 American Association of Physics Teachers.
1983
American Association of Physics Teachers
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