Elements of mechanics: treated by means of the differential and integral calculus (1887)
Peck, William G[uy], 1820-1892. [from old catalog] · New York, Chicago, A. S. Barnes & company · leaf 110
isingweights employed, by W ; and when it is applied at theextremity of the arm r, denote the counterpoising weightsemployed, by W. We shall have, from the principle of thelever, Wr =z Wr, and Wr = Wr. Multiplying these equations, member by member, we have, Wrr = WWrr ; /. W= <y/WWh\ that is,… … Fig. 69. ELEMENTARY MACHINES. 105 weighed in one scale and add counterpoising weights till thebeam is horizontal; then remove the body to be weighedand replace it by known weights till the beam is again hori-zontal ; the sum of the replacing weights will be the weightrequired. If, in changing the…
Mechanics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
