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Bosun's Chair -- Single Pulley M-m2d
Subject in harness with attached rope that flows through overhead pulley, pulls self up with a force equal to half subject's weight. Fishbane Chapter:   5.1 HRW 9th:   7.05 Reese Chapter:   5.911 SJ 3rd Chapter:   4.7 PIRA DCS classification:   1M20.202

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