Hi Chestermiller thanks for your reply! It seems that I was confused about how it would be the deformation for this case...
By the way this is problem 3 from the book Strength of materials by Den Hartog.
Thanks again!
Homework Statement
Two rods of the same material, of equal length l, and of cross section A and 2A respectively, are mounted between two rigid (i.e., nondeformable) cross frames. The frames are pulled by a pair of forces P, located at distance x from the thin bar. Derive an expression for the...