V h A rectangular gate that is 2 m wide and 8 m high is located at the end of a rectangular passage that is connected to a large open tank filled with water. The gate is hinged at its bottom and held closed by a horizontal force Fh acting at the center of the gate. 4 m | FH V 4 m Hinge a) Calculate the resulting force on the gate for h = 9 m. b) How deep below the water level lies then the center of pressure? c) Calculate the torque the water causes in the hinge. d) Calculate the maximal value for h for which the gate stays closed, if F. = 4000 kN. Hint: The second moment of a rectangle with width a and height b is: Izc = {ab3. =