The rigid bars ABC and CD are supported by pins at A and D and by a steel rod at B. There is a roller connection between the bars at C. Compute the vertical displacement of point C caused by the 50-kN load. 3 m B E = 200 GPa A = 300 mm L=3m 1.5 m 2 m C FIG. P2.21 50 kN 2 m D