(Solved): 4. (17 pts) a) The forces act on the shaft shown. Determine the internal normal force at points B ...

4. (17 pts) a) The forces act on the shaft shown. Determine the internal normal force at points B and C (tension or compression?). Show your FBD and calculation. 5 kN 6 kN 65 4 kN b) Determine the internal forces (normal, shear and bending moment) acting at point A of the smooth hook. 7 kN -26- wall 100 t c) The exercise frame is bolted to the floor (fixed support) at A and pined at B. Draw three (3) detail and complete free-body diagrams of member AC, CDEG (you can take pulleys with it) and BE. (don't forget Newton 3rd law). No need for equations or answers. 20 lb 45°