Calculate the value and direction of the horizontal force acting on the spillway given in the previous problem, and knowing that the width of the spillway is 20 ft. Using the momentum principle,...

Calculate the value and direction of the horizontal force acting on the spillway given in the previous problem, and knowing that the width of the spillway is 20 ft.

Using the momentum principle, derive a relation for conjugate depths and the flow rate in a triangular open channel having a side slope of 1 : 1.