calculate the strength of the rod S2.

The wooden frame is constructed from wooden 2” X 4” Lumber (Nominal size; Actual size:  1 ½” X 3 ½”) and bears a uniform distributed load. All connections are pin connected. If wo =  100 lb/ft, and L =  9 ft.  Note that the distributed load is the force per unit length in the horizontal direction. A) Find the vertical reaction force at A. 747 450 248 900 563 B) Find the normal stress perpendicular to the grain at point D.  -26.4 -33.9 -85.7 -21.4 -66.9 C) Find the shear force, V, on the cross-section at E. 106 900 159 150 35

The frame in (Figure 1) supports the 350lb load. The pulley at C has a radius of 0.5 ft. The pulley at D has a radius of 0.25 ft. a) Determine the reaction at pin A.  b) Determine the reaction at pin B.