From exerecise (7):
\The fluid force is .
If the fluid force is one half of , and the height of the water is
, then
and
.
The fluid force on the vertical side is , where
is depth of the liquid and
is the horizontal length of the region at
.
.
The depth of the water in the tank is .
The pressure increases with increasing depth.
\The depth of the water in the tank is .
The pressure increases with increasing depth.