(Solved): ASAP PLEASE!! Use Virtual Work Method to answer the questions below considering the truss shown. Us ...

ASAP PLEASE!!

Use Virtual Work Method to answer the questions below considering the truss shown. Use the cross-sectional areas (A, in2) specified in the figure, E = 30 ksi and a = 20 x 10-6/ oF. "a" is hinge supported and "c" is roller supported. 80k c. 1.50 d. 0.50 e. 0.15 f. 0.25 g. 1.15 h. 2.50 c. 0.325 d. -1.854 (7.5) (4) 20' 1.Select the answer that most nearly gives the absolute value of axial force on member bd from the virtual structure for vertical displacement of joint d. a. 2.85 b. 0.95 e. -0.934 f. 0.897 g. 1.965 h. -0.854 (7.5) (4) a. -2.10 b. 0.89 C. -0.12 d. 0.78 2.Select the answer that most nearly gives the vertical displacement of joint d in inches due to external force only. Put (-) negative sign if its downward. a. -0.406 b. 0.403 10 20 g. -1.20 h. -2.87 5 3. Select the answer that most nearly gives the vertical displacement of joint d in inches due to -100 oF change in temperature in members ad and cd. Don't add deflection due to external loads or fabrication error. Put (-) negative sign if its downward. e. 1.02 f. 0.36