An elementary treatise on mechanics, embracing the theory of statics and dynamics, and its applications to solids and fluids (1849)
Smith, Augustus William, 1802-1866 · New York, Harper · leaf 145
Prop. The principle of virtual velocities obtains in thewedge. PRINCIPLE OF VIRTUAL VELOCITIES, ETC. 121 Let 2P be the whole power, Rand R the pressures perpendicu-lar to the faces of the wedge ABC,which produce equilibrium. Letthe wedge be displaced to the posi-tion AB C. The displacement ofthe… … or P.AA x, * • BAC-R.AA.sm.——=lit p\ R= BAC sin.—- as found in Art. 169. 199. Prop. The principle of virtual velocities obtains in a lev-er of any form. Let ACB be the lever be-fore displacement, ACBits position afterward.From A draw Av perpen-dicular to AP, and from B,Bu perpendicular to…
Mechanics, Analytic
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