Question 2: (10 Marks) A disk and two circular shafts are connected and supported between rigid walls, as shown in Fig. 2. Shaft AB is made of brass (G: 50 GPa) and has a diameter of 250 mm and a length of 400 mm. Shaft BC is made of hollow monel (G: 68 GPa) with an outside diameter of 100 mm, a thickness of 8 mm and a length of 800 mm. If a torque of 15 kN.m is applied to the disk, determine: The maximum shearing stress in each of the shafts. The angle of rotation of the disk with respect to its no-load position. If the maximum stress and rotation in the brass shaft is limited to 100 MPa and 0.014 radian and in the Monel shaft is 150 MPa and 0.034 radian, check whether the shaft is safe or not. Find also the factor of safety if it is safe 15 Nm Figure 2