Consider the 2D frame shown below. There are pins at A, C, D. Point E is halfway between A and C. 1.5 m EXTERNAL FORCES a) Draw a FBD. Include all external reaction forces & moments. b) If there are any 2-force members, identify them. c) Solve for the values of all external reaction forces. INTERNAL FORCES - BEAM ACB d) Draw a diagram of member ACB with all external forces acting on it, (4) and indicate the orientation of the "cut" at point E. (3) e) Pick one half (left or right of the cut at E), draw the cut-piece and label all internal forces and bending moment at point E. Solve for all internal forces and bending moment at point E. f) (3) 1.5 m E 1.5 m 4 kN (4) (2) (4) B