3- Determine the moment about point A and B of the three forces acting on the beam. Comprehension (State Definition, Free Body Diagram and/or Diagram Sketch) F= 300 1b F2= 575 1b 5/ 14 B o's ft 8 ft- 6 ft - 5 ft- 309 F3= 150 lb Knowledge (Equations that Governing the Phenomenon) Application (Solution Procedure, all computations)4- Elements of the lower arm are shown in the figure. The weight of the forearm is 5 1b with mass center at G. Determine the combined moment about the elbow pivot O of the weights of the forearm and the sphere. What must the biceps tension force be so that the overall moment about O is zero? Comprehension (State Definition, Free Body Diagram and/or Diagram Sketch) 55 5 1b 8 lb 13" Knowledge (Equations that Governing the Phenomenon) Application (Solution Procedure, all computations)