The rectangular gate $\backslash ($ A B $\backslash )$ is $3$ ft wide $($into the paper$)$ and $2$ ft long. It is inclined at $\backslash (\backslash$alpha$=30^\{\backslash$circ$\}\backslash ).$ Both tanks contain water. While left thank has a pressurized air at gage pressure $3$ psi, right thank is open to atmosphere. Determine the magnitude and direction $($clockwise or counter clockwise$)$ of the moment about hinge A exerted by the water.