Determine the member force and axial stress in each member of the truss shown in the figure using a commercial finite element analysis program. Assume that Young's modulus is \(10^{4} \mathrm{psi}\) and all crosssections are circular with a diameter of \(2 \mathrm{in}\). Compare the results with the exact solutions that are obtained from the freebody diagram.

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9' 12' 12' 12' 1,200 lb 400 lb Material: Steel rod Diameter: 2"