The motor A develops a torque at gear B of 450 lb • ft, which is applied along the axis of...

The motor A develops a torque at gear B of 450 lb • ft, which is applied along the axis of the 2-in.-diameter steel shaft CD.This torque is to be transmitted to the pinion gears at E and F. If these gears arc temporarily fixed, determine the J maximum shear stress in segments CB and BD of the shaft. Also, what is the angle of twist of each of these segments? The bearings at C and D only exert force reactions on the shaft and do not resist torque. G st = 12 (103) ksi.