Internal forces in segments A$,$ B and C$.$ Draw free body diagrams for each case. Use statics. Show the assumed sign convention for summations and the resulting vector orientations.

Draw the axial loading diagram utilizing the internal forces calculated earlier. Identify whether the segments are in tension $T$ or compression $C.$

The axial stress $$ for each segment and show the axial stress distribution on the cross section.

The axial displacement $$ caused by the applied loads if the modulus of elasticity $E$ is $29000$ksi. P is the magnitude of the internal forces calculated earlier on step $1.$ The area A of the bars is that of a circle. Use the axial displacement equation $=P\frac{L}{E}A.$ Express the displacement $$ in inches. This information will allow you to determine the final length Lf$.$

The axial strain $$ if the initial length Lo for segments A and $C$ is $5$ in and for segment $B$ is $7$ in$.$

Figure $1\mathrm{.}1$ stepped Bar Loaded Ax$$ally