Two weights are connected to a rotating shaft and mounted outboard of bearings A and B. If the speed of the shaft is 120 rev/min, what are the magnitudes and orientations of the bearing reactions at A and B?

Figure P15.2 a = 6 in, b = 12 in, R1 = 8 in, R2 =

12 in, R3 = 6 in, w1 = 2 oz, w2 = 1.5 oz, and w3 = 3 oz.

Suppose the system is to be balanced by removing weight at a radius of 5 in. Determine the magnitude and orientation of the weight to be removed.