Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 133
f levers similar to this may be seen inscales used for weighing very heavy bodies such as theso-called platform hay scales, in which a comparativelysmall weight counterbalances the heavy load. 93. Combinations of thewheel and axle. — Fig. 85represents a train of wheelsin gear. A train of… … Mxercises. 1. When there are four movable pulleys in one block, what length ofcord passes through the hands in raising a weight 6 inches ? 2. What force must a man weighing 180 pounds use, to support him-self by means of the pulleys in Fig. 83, N ? 3. The circumference of the circle described by…
Physics
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
