The elements of natural and experimental philosophy .. (1834)
Phillips, R. (Richard), Sir, 1767-1840, Smith, E. A · New York, M'Elrath, Bangs & Herbert · leaf 62
he lower block will be acted upon byan equal part of the weight, and since in, each pulley that moves with the weight a^double increase of power is gained, there-fore the advantage gained, is as four toone. LXXX. In general the advantage gained bypulleys is found by multiplying the number… … 177. What is the use of a fixed pulley? 17S. How must the powercompare with the weight in order to move it, by the use of the fixedpulley ? 179. What proportion of advantage is gained by the moveablepulley ] l=:o. What is the reason that a weight can be raised more easilywith a pulley than without…
Physics
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