Question: Problem 3: For the plane truss structure shown in figure below, determine the displacement of node 1 using the stiffness method. Also determine the

Problem 3: For the plane truss structure shown in figure below, determine the displacement of node 1 using the stiffness method. Also determine the stress in all elements. Let: A = 10 in, E = 106 psi, and L = 150 in 4 3 L 25 25 300 lb 45 2

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