To solve this problem we must simply resort to Newton's second law as well as the relationship between pressure and force as a physical unit applied in a given area.
In mathematical terms the Weight can be expressed as
[tex]F_w = mg[/tex]
Where,
m = mass
g = Gravitational Acceleration
We have the mass and the gravitational acceleration therefore the Weight is
[tex]m = 7.23*10^4Kg[/tex]
[tex]g = 9.8m/s^2[/tex]
Replacing we have
[tex]F_w = (7.23*10^4)(9.8)[/tex]
[tex]F_w = 708540 N[/tex]
In this way the pressure exerted according to the active Area is,
[tex]P = \frac{F}{A}[/tex]
[tex]P = \frac{708540}{77.5}[/tex]
[tex]P = 9142.45Pa[/tex]
Therefore the pressure difference between the lower and upper surface of the wings is 9.14kPa
