Q2 A truss as shown in Fig. Q2 is loaded with a horizontal force of 5 kN at joint D and a vertical force of 10 kN at joint B. For each truss member, the cross-sectional area is A - 200 mm², the Young's modulus is E-200 GPa, and the coefficient of thermal expansion is a = 12x10-5°C. (1) Calculate the member deformations for all truss members due to the applied two forces. Also calculate the horizontal displacement at joint D due to the applied two forces.

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