The solid shaft ABCD is shown in Fig.2. Assuming that the magnitudes of the forces applied to disks A and Care, respectively, P = 10801b, P = 81016. The radius of disks A and C are r = 6 in. rc = 8 in, respectively. Knowing that the allowable shear stress Tis 9ksi in the shaft. Neglect the shear stress due to transverse shear force. Answer the following questions: all (1) Draw FBD of shaft in horizontal and vertical plane. (2) Show Bending moment in horizontal and vertical plane respectively, and torque diagrams. (3) Determine the smallest allowable diameter of the solid shaft ABCD. B 3 in. 6 in. 10 in. 8 in. Figure 2 10 in. vz D 14