Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 402
braced by a kind of iron or other metallicfork whose prongs are per-forated near the ends for thereception of the axle, andwhose shank terminates in ahook to which the resist-ance W is attached. Thepulley is, in this case, saidto be moveable. Denote theresistance to be overcomeand put in motion, by… … notation; 398 NATURAL PHIL ?)S0 PHY. tension Q, increased by tlie work due to the stiffness ofthe rope and friction; that is, quantity of work; FRs,= Q R 8, + d, K ^ f^ Rs, + tf Ws, . . (145). L R Dividing both members by Rst value of thepower; F = Q + d, K + IQ2R + R fW. The pulley being sup-posed…
Mechanics · Acoustics · Optics
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