The assembly consists of an A-36 steel rod CB and an a 2014-T6 aluminum rod BA - 4-2

4–2. The assembly consists of an A-36 steel rod CB and an a 2014-T6 aluminum rod BA, each having a diameter of 20 mm. If the rod is subjected to the axial loadings at A and at the coupling B, determine the displacement of the coupling B and the end A. Neglect the size of the connections at B and C. All problems from Mechanics of Materials Eleventh Edition by Russell C. Hibbeler.