Both bars have cross-sectional area 3 in 2 , modulus of elasticity E = 12E6 psi, and coefficient of thermal expansion α = 6.6E‐6 o F -1 . A 20-kip horizontal force directed toward the right is applied...

Both bars have cross-sectional area 3 in², modulus of elasticity
E
= 12E6 psi, and coefficient of thermal expansion
α
= 6.6E‐6^oF^-1. A 20-kip horizontal force directed toward the right is applied at A and the temperature of the bars is increased by 30^oF from their initial temperature
T. What are the resulting horizontal and vertical displacements of point
A?