A vertical plate is submerged in water as indicated in the figure.
\Find the hydrostatic force on one end of the aquarium:
\
.
, where
is the depth of the aquarium.
At any time, the plate is
ft depth from the surface.
Thus,
.
Strip area of one side of the plate is
, as depth increases then
also increses.
Thus, consider width as
.
Find the length of the strip.
\Redraw the figure.
\Finding net force on upper half.
\Observe the diagram: