Axial loads are applied with rigid bearing plates to the sol…

Axial loads are applied with rigid bearing plates to the solid cylindrical rods. One load of P = 120 kN is applied to the assembly at A, two loads Q = 30 kN are applied at B, and two loads R = 130 kN are applied at C. Determine the total change in length of the assembly.L1 = 0.20 m, E1 = 196 GPa, A1 = 0.0014 m2L2 = 0.46 m, E2 = 206 GPa, A2 = 0.0004 m2L3 = 0.38 m, E3 = 104 GPa, A3 = 0.0015 m2