The fluid force on the vertical side of the tank is 11, 007. 4 Newton
Note that fluid force is the pressure exerted by the fluid over a given area and is expressed thus;
Force = Pressure × area
But find the pressure
Formula for pressure in this case is;
Pressure = density × acceleration due to gravity × height of the fluid
Density = 62. 4 pounds per cubic foot
acceleration = 9.8 m/ s^2
height = 3 meters ; depth of the fluid and is deduce from the diagram
Substitute into the formula for pressure
Pressure = 62. 4 * 9. 8 * 3 = 1, 834. 56 Pa
Then, to find the fluid force
Force = pressure × area
Pressure = 1, 834. 56 Pa
Area of a triangle = 1/2 * base * height = 0.5 *4 *3 = 6 feet square
Fluid force = 1,834. 56 × 6
Fluid force = 11, 007. 36, round to one decimal place
Fluid force = 11, 007. 4 Newton
Thus, the fluid force on the vertical side of the tank is 11, 007. 4 Newton
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