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 93
orces P, P, P . . . act. Weimagine rings placed at the points in question, andother rings A, B, C . . . fastened to points lying inthe directions of the forces. We seek some commonmeasure Qji of the forces P, P, P . . . . that enablesus to put: 66 THE SCIENCE OF MECHANICS, Effected bymeans of aset… … Fig. 54- n times back and forth between £ and B, then throughC, n times back and forth between C and C, and,finally, let it drop at C, attaching to it there the weightQ/2. As the string has, now, in all its parts the ten-sion (2/2, we replace by these ideal pulleys all theforces present in the…
Mechanics
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