. One may model the ladder rung as a simply supported beam. Assume that the 750 N load exerted by the foot of the person stepping on the rung is distributed uniformly over the sole of the shoe. Draw the shear force and bending moment diagrams for the rung.

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.