A paved levee embankment has a 45° slope as shown in Figure P4.53. A rectangular gate, 6 ft square, in the face of the embankment has its center 20 ft above the bed. When the river water surface is 40...

A paved levee embankment has a 45° slope as shown in Figure P4.53. A rectangular gate, 6 ft square, in the face of the embankment has its center 20 ft above the bed. When the river water surface is 40 ft above the bed, what is the total hydrostatic force on the gate and where is it applied?