A rectangular gate is hinged at the top edge at $P$

Given that gate height $=2\mathrm{.}5m$

and gate width $=0\mathrm{.}8m.$

Determine the hydrostatic force exerted on the gate, knowing that the gate will open when oil reaches the level shown in figure.

Select one:

a$.45\mathrm{.}86km$

b$.41\mathrm{.}69kN$

c$.70\mathrm{.}877kN$

d$.50,03kN$