Awnser correctly and ill upvote!!

For the partial roof plan below, the live load on the roof is 3 kPa. The dead load on the roof is 2.5 kPa. In sections X and Y. The joists run east-west. In section Z, the joists run north-south. All connections are pinned connections. a) Calculate the factored load for the roof. (1) b) Sketch tributary area with dimensions on the plan for beam AB and show calculations. (2) c) Draw internal bending moment and shear force diagrams for beam AB. Show the maximum Design forces* (M and V) on diagrams. Consider loads on beam AB as a UDL. (2) d) Design beam AB. Choose the most economical beam size. The concrete slab provides lateral support for all girders and beams. (5) Use L/300 as code deflection criteria. A=5wL4/(384E1) is for the UDL. Ignore self-weight of the beam. 6 m 6 m f 7 m B lo D N 5 m