How Do Forces Differ in Multiple Members of a Structure?

[gikiian]

Homework Statement

(please see the attachment)

Homework Equations

σ=F/A

The Attempt at a Solution

I just can't figure out how to find the forces in the two members.
Actually I thought the force in both members will be the same, but according to the problem statement it clearly isn't that way.
Kindly help me with this.

 

[PhanthomJay]

You should determine the end reaction at C first, using the equilibrium equation in the x direction. C will be a function of the unknown force P. Then a FBD of each part will give the force in that part, then set the stresses in each part equal to solve for P. Please show your workings.

 

[gikiian]

Yeah, I got it. Thanks :)