Problem No. 2 (40 points) The steel road AB with E= 30,000 ksi is firmly connected to an aluminum rod BC with E = 10,000 ksi as shown. The assembly is held between two rigid supports at A and C. Before any load is applied, there is a gap of 0.01 inch as shown. (a) Determine the support reactions when the axial force of 200 kips is applied at B. (b) Determine the normal stresses in AB and BC. Given: Diameters of AB = 1.25-inch and BC = 2.0-inch A P B 5-in. 10-in.