Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 95
Lever of the third class. The arm a is the dis-tance of p from the fulcrum, and the arm b is the distance ofw from the fulcrum. It is evident that the moments must betaken with respect to /, since that is the only fixed point,and consequently any motion must be about / as a center. 78 PHYSICS In… … 32.—Analysis of the lever of thefirst class. W di ! P Fig. 33. i >ii \p -Analysis of the lever of thesecond class.
Physics
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