2nd time posting this. I need a correct answer. I need the last question. Thanks

Question

2nd time posting this. I need a correct answer. I need the last question. Thanks. Please show work.

Use the worked example above to help you solve this problem. An airplane has wings, each with area 3.95 m^2, designed so that air flows over the top of the wing at 241 m/s and underneath the wing at 226 m/s. Find the mass of the airplane such that the lift on the plane will support its weight, assuming the force from the pressure difference across the wings is directed straight upwards. Approximately what size wings would an aircraft need on Mars if its engine generates the same differences in speed as in the "Practice It" and the total mass of the craft is 550 kg? The density of air on the surface of Mars is approximately one percent Earth's density at sea level, and the acceleration of gravity on the surface of Mars is about 3.8 m/s^2.

Explanation / Answer

We have 2*A*deltaP = mg

A = mg/2*DeltaP = 550*3.8/(1/2 *0.0129*(241^2-226^2) = 46.25 m2

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