Question: in the figure shown below gate AB ( gate is hinged at point B ) has a width of 2 m , if the pressure

in the figure shown below gate AB (gate is hinged at point B) has a width of 2m, if the pressure in section C is equal to 1atm and L=5m and point B has a distance of 2m from the free surface, find F so that the gate opens.
in the figure shown below gate AB ( gate is

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