Bars A (aluminum alloy, A = 2.5 in2 , E = 10*106 psi) and B (nickel-copper alloy, A = 2 in2 , E = 25*106 psi) are connected by rigid links to a fixed wall and rigid bar CD. Assume that CD remains horizontal during loading. What load P is necessary to produce an axial stress of 18 ksi in bar A. (The answer should be P= 33 k)
A
B
10"
C
D
4"
4"
2"
P