The science of mechanics; a critical and historical account of its development (1902)
Mach, Ernst, 1838-1916, McCormick, Thomas Joseph, 1865- tr · Chicago, The Open court publishing company; · leaf 234
,instead of weighing/, now weighs {p/g){g— y). Andsince y = (//a P -\- p) g, we have now to regard theload on the pulley, not as/, but asp{2.P/2P-\-p). The THE PRINCIPLES OF DYNAMICS. 207 descending weight, only partially impeded in its motionof descent, exerts only a partial pressure on the… … Fig. 135c. 135(5., tie the unloaded extremity at m, and equilibratethe balance. If we pull on the string at m, this can-not directly affect the balance since the direction of thestring passes exactly through its axis. But the side aimmediately falls. The slackening of the string causesa to rise. An…
Mechanics
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