Carhart, Henry S. (Henry Smith), 1844-1920 · Boston : Allyn and Bacon · leaf 83
passing over a pulley without friction, and carrying acounter weight P + WThen the several weights will be in equilibrium. Either A, B, or C may be conceived to be fixed and the equilibrium will be maintained.Thus if 0 be fixed it becomes the fulcrum, and by theprinciple of moments (54) P__BCW~~AC9… … and KINETICS. 73 W AC P+ W ~ AB or power and weight are inversely as their acting distances. If IF is the power, the lever belongs to the second order. If P + If is the power, the lever is of the third order. The relation of power and weight, expressed above,applies to the several orders alike. 58.…
Physics
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