Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 42
angle of resistance, sovi\&-times the angle of repose. 40. The lever is a name given to any bar straight or curved, AB (fig. 17)resting on a fixed point or edge c called i\\e fulcrufn. The forces acting onthe lever are the zueight or resistance Q, the power P, and the reactionof the fulcrum.… … 24 On Matter, Force, and Motion. [40- that P X ca, and Q x cb are the moments of P and Q with respect to c, andthat they have contrary signs, we have by (36), P :; ca=(:^xcb; an equation commonly expressed by the rule, that in the lever the poweris to the weight ift the ijtverse ratio of their…
Physics
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