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An airplane has a mass of 2.2×106 kg , and the air flows past the lower...

An airplane has a mass of 2.2×106 kg , and the air flows past the lower surface of the wings at 85 m/s . If the wings have a surface area of 1200 m2 , how fast must the air flow over the upper surface of the wing if the plane is to stay in the air?

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Answer #1

Bernoullis equation for a constant height of the fluid is given by, Pirmaer to z pevnoves = Purper tože v por 2(Paner-Purgs)

[2AP + lower Upper 2mg + v? Tower lower у Ар 2(2.2 x100 kg)(9.8m/s?).com +(85m/s) V (1200m²)(1.29kg/m”) = 187.297 m/s 187m/s

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