Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 143
Fig. 138. llav .scales Fig. 139. Windlass with shears 6. The hay scales shown in Fig. 138 consist of a compound lever withfulcrums at F, F, F, F. If Fo and Fo are lengths of 6 in., FF andFE 5 ft., Fn 1 ft., Fm 6 ft., rF 2 in., and FS 20 in., how manypounds at W will be required to balance a weight…
Physics
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