Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 95
32.—Analysis of the lever of thefirst class. W di ! P Fig. 33. i >ii \p -Analysis of the lever of thesecond class. … Fig. 34.—Analysis of the lever of thethird class. mome nts, we (Figs. 31, 34): ws = pd, or w d= ~P wl) -pa,a or W -TV- (2) In levers of thethird class there cannever be mechanicaladvantage, since p isalways nearer to /,and must therefore begreater than w. Thearms a and b are the ra-dii of the…
Physics
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