For the roof truss shown in Figure P3-48, use symmetry to determine the displacements of the nodes

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For the roof truss shown in Figure P3-48, use symmetry to determine the displacements of the nodes and the stresses in each element. All elements have E = 210 GPa and A = 10 × 10-4 m2.

Figure P3-48

20 kN 20 kN 20 kN (5) 4 m 2
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