Analytical mechanics for students of physics and engineering (1913)
Dadourian, Haroutune Mugurditch, 1878- · New York, D. Van Nostrand Company · leaf 62
le 6 with the .r-axis. Then the equations of equilibrium become 2 X -F cos 6 - A + W cos a = 0,ZF ■ Pain 0 - IF.sin a = 0,!<;„■ W -asin a - Frinfl-a = 0. From either of the lasi two equations we get r, sin a tit Since ll and a are fixed F can be changed only by changing 0. Thereforethe minimum… … Fig. 35. Since cos 6 = 0 the first equation of equilibrium givesR = W cos a a Discussion. — It will be observed that the first two of the equationsof equilibrium are sufficient to solve the problem. When h is zero, F = 0 and R = W. On the other hand when h = a,F = W and R = 0. PROBLEMS. 1. Prove…
Mechanics, Analytic
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