A stepped shaft ABCconsisting of two solid, circular segments is subjected to uniformly distributed torque t1 acting over segment 1 and concentrated torque T2 applied at C, as shown in the figure. Segment 1 of the shaft has a diameter of d1 = 57 mm and length of L1 = 0.75 m; segment 2 has a diameter d2 = 44 mm and length L2 = 0.5 m. Torque intensity t1 = 3100 N_m/m and T2 = 1100 NÂ·m.
(a) Find reaction torque TAat support A.
(b) Find the internal torque T(x)at two locations: x= L1/2 and at x = L1 + L2/2. Show these internal torques on properly drawn free-body diagrams (FBDs).