Question

An airplane wing with an average cross sectional area of 10 m² experiences a lift force of 5000 N. What is the difference in air pressure, on the average, between the bottom and top of the wing?

Answer 1

The difference in air pressure

$$P=\frac{F}{A}\\ =\rm\frac{5000\: N}{10\: m^2}=500\:Pa$$