problem1) A tension Q is maintained in cord shown as it passes over pulleys of diameter d.
(a.) Neglecting weight of the rod and pulleys, express magnitude of the force P corresponding to equilibrium in terms of Q, a, d, and theta.
(b) Knowing that Q = 10 lb, a = 5 in, d = 0.8 in, and, theta=30 degrees, find out the magnitude P.
problem2) A motor delivers 500 hp to the shaft. Which is tubular and has an outer diameter of 2 in. If it is rotating at 236 rad/s. Find out its largest inner diameter if allowable shear stress for the material is? allow = 25 ksi. 1 hp = 550 ft*lb/s