Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 97
anisms. 101. The Pulley.—In its simplest form the pulley is afixed wheel, which serves to change the direction of motion,but offers no mechanical advantage. As P and W (Fig. 36)move through the same distance, they must be equal. W= P. In this form it is simply a lever of the first class (Fig.32),…
Physics
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