Anatomy & Design 2 Sa....pdf QUESTION Z (a) [20 marks] A van and trailer cross the bridge below, the axel loads and the position of the vehicles are shown. The single span bridge is supported at points 21m apart. Assuming that the beam weight is negligible, determine: (i) Draw a Free Body Diagram of the problem. (ii) The vertical forces at each of the supports caused by the van and trailer on the bridge. (2) (4) (iii) The position the truck front wheels need to be in to produce equal reactions at the supports. (4) Figure Q2 Info