Homework

Consider the arrangement shown: $a=8m,b=6m,h=11m$ and $=20,$ the gate has a width of $0\mathrm{.}80m$ into the paper. The block has a specific gravity of $7\mathrm{.}0$ and it's totally immersed in oil $(S=0\mathrm{.}82).$ Calculate

The hydrostatic force acting on the gate $($in $kN).$

The vertical distance between the line of action of the hydrostatic force "center of pressure" and water surface $($in $m).$

The volume of the block required to start opening the gate. $($in $m^3).$