A text book of elementary mechanics, for the use of colleges and schools (1881)
Dana, Edward Salisbury, 1849-1935 · New York, J. Wiley & sons · leaf 249
Fig. 162. or, in general, W =s 25P,W = 2nP, where n is the number of the pulleys. 230 STATICS. [222. The beam supports at a a tension CiP, also 2P at b,4=P at c, 8P at d, and 16P at e. 222. Second System. W = wP. Fig.163 represents another system of pul-leys. As here but one string is involved,its… … or, in general, W= 6P, W = nP, where n is the number of strings risingfrom the movable pulleys. This form of pulleys is the one whichis generally employed, though in practice,as remarked in Art. 226, the wheels areplaced side by side in two blocks. If in this arrangement theweight iv of the movable…
Mechanics
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