Problem Fig: 1.11.
A member ABCD is subjected to point loads Pw, Pg, Pz, and Pa as shown in Figure 1.11. Calculate the force Pg necessary for equilibrium, if P1 = 45 kN, P3 = 450 kN, and P4 = 130 kN. Determine the total elongation of the member, assuming the modulus of elasticity to be 2.1 x 10^5 N/mm^2.