Prob. 2.2-14. The three-member frame structure in Fig. P2.2-14 is subjected to a downward vertical load P at pin C. The pins at B, C, and D apply axial loads to members BD and CD, whose...

Extracted text: Prob. 2.2-14. The three-member frame structure in Fig. P2.2-14 is subjected to a downward vertical load P at pin C. The pins at B, C, and D apply axial loads to members BD and CD, whose cross-sectional areas are A = 0.5 in² and A2 = 1.0 in², respectively. (a) If the axial stress in member BD is o = 1200 psi, what is the value of force P? (b) What is the corresponding axial stress, 02, in member CD? - 12 in.→|-- 12 in.- 9 in. B 9 in. C (1), 32 in. P (2) D