Problem 1 For each of the following problems, replace the distributed loading with an equipollent set of forces and solve for all reactions at the supports. Be sure to include a free-body diagram for each problem (a - d), which shows the initial distribution and location of the equipollent resultant loads. Note the pinned and roller supports and invoke 2D equilibrium to solve for the support reactions. wall calculate wall reaction calculate reaction at A pin support 300 lb/ft 1 kN/m 2 kN/m 4 kN/m A pin support roller support B 7 m 3 m 1500 N/m calculate 2 m 2 m 2 m reaction at A (a) (b) pin support 3 ft 100 lb/ft 300 lb/ft 500 lb/ft roller support B 3 ft 4 ft 4 ft calculatel reaction at A (c) calculate calculate (d) reaction at B wall reaction 500 lb/ft calculate reaction at B 4 ft 3 ft Problem 2 (a) Determine the support reactions at points A and G. (b) Identify all of the zero-force members in the truss depicted in the figure below. (c) Apply the method of joints to determine the force in member HF. Is member HF in compression or tension? A D 6 ft M E 200 lb 3 ft K L F B 500 lb 3 ft H G 6 ft 300 lb 6 ft 6 ft 6 ft 400 lb 100 lb