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 144
in Art. 162. =2n-l 197. Prop. The principle of virtual velocities obtains in theinclined plane. Let the force P make any an-gle e with the plane, a=z_BAC,a the first posilion of the bodywhose weight is W, a the posi-tion of it after displacement. Drawing the perpendicularsav, au, we have… … 198. 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…
Mechanics, Analytic
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