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Combinations of Fixed Pulleys

المؤلف:  GEORGE A. HOADLEY

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  p-106

2025-11-06

548

Figure 1 shows how, by a combination pulleys, the horizontal pall of a horse can be used to raise a heavy weight The mechanical advantage secured by the movable pulley would frequently be useless if it were not for combining with it one or more fixed pulleys by pull can be changed.

FIG. 1