The origin of each system is in static equilibrium. (You will probably have to use algebra): 1 2 77.85 C 65 50 cos 45 =200N A=200N B=50N Find the unknown values Sin 45= By = 50sin 45 So cos 45 = Bx 50 50 sin 45 B=90N 4.909 X > x = 50 105 45