For the truss shown below, calculate the reaction forces at A and B, then use the method of sections to calculate the internal forces of the members cut by the dashed line. a = 5.5 m and b = 3.0 m. P1 = 14 kN, P2 = 12 kN and P3 = 12 kN.

 

P1 0.5a 11 P2 31 B RAY P3 Rex 1 RBY