For the truss shown in Figure P3–45, use symmetry to determine the displacements of the nodes and the stresses in each element. All elements have E =200 GPa. Elements 1, 2, 4, and 5 have A =10 104 m2 and element 3 has A =20 104 m2. Let dimension a =2 m and P =40 kN. The supports at nodes 1 and 4 are defined.
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