Answer Happy

A solid driveshaft with a diameter of 3 in is made of an aluminum alloy (G = 3800 ksi). When subjected to a torque of 400 ft-lb, it corresponds to angle of twist of 0.4º. Determine the length of the rod. T= 400 lb.it = 0.4 Select one: O a. 43.5 in O b. 41.0 in O c. 42.2 in O d. 43.9 in