air passes over the top of an airplane wing at 170 m/s and over the bottom at 130 m/s. the wing has a surface area of 25.5 m^2. what is the TOTAL LIFT FORCE on the wing?

Answer 1

The problem related to Bernoulli’s equation, that is , p₁ +(1/2)ρgV₁² =p₂ +(1/2)ρgV₂² , where ρ is air density.

Lift force appears due to pressure difference between over the top and bottom of the airplane wings, then, by using pressure definition (P=F/A), you can find F=PA=(1ρg/2)(V₂² -V₁²)=197370 N

Answer 2

F = 0.5ρA(V₁² - V₂²) = 0.5·1.29kg/m³·25.5m²(170²m²/s² - 130²m²/s²) = 197370 N·