Problem 2: A circular shaft AB consists of a 10-cm-long, 0.875-cm-diameter steel cylinder, in which a 5- cm-long, 0.625-cm-diameter cavity has been drilled from end B. The shaft is attached to fixed supports at both ends, and a 9 Nm torque is applied at its midsection. (a) Determine the reaction at ends A and B. (b) Draw the torque diagram along the length of the shafts. (c) Determine the maximum shearing stress in the structure. (d) Determine the angle of rotation of the midsection. 5 cm 9 6=77 5 cm Apa