The pin-connected structure consists of two cold-rolled steel [E-26,000 ksil bars (1) and a bronze [E 12,000 ksi) bar (2) that are connected at pin D. Each steel bar has a cross-sectional area of 0.250 in.2. A load of P-20 kips is applied to the structure at pin D. Using a 3.2 ft and b=5.7 ft, calculate the area required for bar (2) so that each bar carries the same force. B (1) Answer: A2- in 2