6-71. Determine the horizontal and vertical components of force that the pins C and D exert on member ECD of the frame. *6–72. Determine the horizontal and vertical components of force that the pins at B and D exert on member ABD of the frame. 4 ft to 2 ft D 2 ft 1 ft B 3 ft E 800 lb Probs. 6–71/72
