Analytical mechanics for students of physics and engineering (1913)
Dadourian, Haroutune Mugurditch. [from old catalog] · New York, D. Van Nostrand company · leaf 52
6 with the a;-axis. Then the equations of equilibrium become XX ^Fcosd - R + Wcosa = 0,SF =Fsind - IT sin a = 0,XG0= W -asm a- Fsin6-a = 0. From either of the last two equations we get F==smaw sin v Since W and a are fixed F can be changed only by changing 0. Thereforethe minimum value of F is… … Fig. 35. Since cos 6 = 0 the first equation of equilibrium gives R = W cos 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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