6-33 A beam is loaded and supported as shown in Fig. P6-33. The beam has a uniform cross section and weighs 250 1b. Determine the reactions at supports A and B. 2500 1b 6 ft 6 ft A B 45 Fig. P6-33 For the simple truss shown, find the reaction forces at points A and D 3kN 5kN '60f 60 i:&;u