P-80 kN 2. A bar made of A-36 steel has the dimensions shown below. If an axial force of P=80 kN is applied to the bar, determine the change in its length and the change in the dimensions of its cross section after the load is applied. Some properties of the A-36 steel that may be of use are: E=200 GPa, G-75 GPa, v-0.32, Gy-250 MPa. Answers: 6z= 5x = Sy= 1.5 m 50 mm x P= 80 kN