Figure Q2 shows a circular plane gate at the end of a discharge pipe. The gate is hinged at the top and held closed by a horizontal force, FH, located at the centre of the gate. The water depth, h, which is measured from the centre of the gate to the free surface, is 15 m. Calculate the hydrostatic force, FR, and the line of action of FR acting on the gate. Figure Q2 FH 1m T