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 115
n employed alone, it affords no mechanicaladvantage; but when passed over or attached to certain fixedpoints, the resistance of these points may be employed advan-tageously. 147. Prop. Required the condition of equilibrium of a cordacted upon by three forces. Let the forces P15 P2,P3 be applied at… … P 3 = sin. DCN : sin. MCN : sin. MCD, = sm. a1 sin. (a+a) : sin. a ;or, the forces are each as the sine of the angle contained betweenthe directions of the other tivo. 92 STATICS. 148. Cor. 1. If the cord be fixed at A and B, the reactionsof the points A and B take the place of the forces Pj and…
Mechanics, Analytic
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