The wires AB and BC have original lengths of 2 fl and 3 ft, and diameters of  in. and  in....

The wires AB and BC have original lengths of 2 fl and 3 ft, and diameters of  in. and  in., respectively. If these wires are made of a material that has the approximate stress-strain diagram shown, determine the elongations of the wires after the 1500-lb load is placed on the platform.