(Solved): Find the displacement for the node \( C \) and the internal forces of each element as shown in Fig ...

Find the displacement for the node \( C \) and the internal forces of each element as shown in Figure Q4. Perform a hand calculation to validate the results of the displacement and internal forces of each element. Using the calculated displacements, determine the strain and stress of each element. Both members: Area \( A=100 \mathrm{~mm}^{2} \) Young's modulus \( E=70 \mathrm{kN} / \mathrm{mm}^{2} \) \( \alpha=40^{\circ} \) \( L=750 \mathrm{~mm} \) \( P=10 \mathrm{kN} \) Figure \( \mathrm{Q} 4 \)