Find the following questions at the depth of 25\text{m}. The gravitational acceleration is g = 9.8\text{m/s}^2 and the density of water is \rho = 1000\text{kg/m}^3.
a. Find the hydrostatic force on a square steel plate with sides 2\text{m} placed horizontally.
Answer (in Newtons):
b. Find the hydrostatic force on a square steel plate with sides 2\text{m} placed vertically.
Answer (in Newtons):
The force=atmospheric+densitywater*depth*area.
I am not certain how the plate is configured, I suppose you are asking for the compressive force, ie, the inward force on each side.
depth=25m
It does not matter horizontal, or vertical. In the vertical configuration, the average depth is the average force.