A series of wheel loads crosses a simple beam of span 8 m. The front wheel load is 4 kN, the middle wheel load is 8 kN, and the rear wheel load is also 8 kN. The distance between the rear wheel and the middle wheel is 4 m while the front wheel and the middle wheel is 2 m. Find the maximum value of shear that can be developed at the midspan of the beam. 5 kN 4 kN 3 kN O 6 kN A series of wheel loads crosses a simple beam of span 8 m. The front wheel load is 4 kN, the middle wheel load is 8 kN, and the rear wheel load is also 8 kN. The distance between the rear wheel and the middle wheel is 4 m while the front wheel and the middle wheel is 2 m. Find the maximum value of moment that can be developed at the midspan of the beam. 20 kN-m 16 kN-m 28 kN-m O 24 kN-m