A load of P = 200 lb is applied to the lever arm at D as shown. The cable AB has a diameter of 1/2 in. and the pin at C has a diameter of 318 in. . Calculate: 7 m. a) the average normal stress in the cable AB, b) the average shear stress in the pin at C, and c) the factor of safety if the system is expected to fail when the average normal stress in the cable reaches 36 ksi or the average shear stress in the pin reaches 27 ksi. _ x A t 24 in