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Linear Air Track: Instantaneous Velocity M-c1c
An air track glider passes through two pairs of closely spaced photogates with each pair separated by 2 meters, enabling instantaneous velocities, accelerations, and predicted distances to be calculated. Fishbane Chapter:   2.2 HRW 9th:   2.05 SJ 3rd Chapter:   2.1 PIRA DCS classification:   1C10.271

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Physics Lecture Demonstrations at the Department of Physics and Astronomy
The Johns Hopkins University