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a = = Rigid bar ABCD is supported by a pin connection at Aand by two axial bars (1) and (2). Bar (1) is a 30-in.-long bronze[E - 14100 ksi, 9.5x 10-6PF] bar with a cross-sectional area of 1.75 in.? Bar (2) is a 42-in.-long aluminum alloy [E-9800 ksi, a = 12.6 1067F] bar with a cross-sectional area of 2.50 in.2. Both bars are unstressed beforethe load Pis applied. Assume 12-30 in., (2-42 in., 9-36 in., 6-42 in., and c-18 in. If a concentrated load of P-29 kips is applied to the rigid bar at Dand the temperature is decreased by 85°F, determine: (a) the normal stresses in bars (1) and (2). (b) the normal strains in bars (1) and (2) (c) thedeflection of the rigid bar at point D. L2 B D L (1) b a Using a FBD of the beam, assuming members in tension, relate the force in the members and the applied forcep by summing moments about the pin at A. Assumecounterclockwise is positive in writing the equation. in.) F1+! i in.) F2+1 i Answer: in.) (29 kips) - 0. Save for Later Attempts: 0 of 3 used Submit Answer Part 2 Assume the rigid bar ABCD rotates clockwise around point A. Using a deflection sketch, relate the deflections of points Band C. Assume positive deflections are down. Answer: Ve- i Vc Save for Later Attempts:0 of 3 used Submit Answer