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An airplane's lift

  • Thread starter kitty9035
  • Start date
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1. Homework Statement
What is the net upward force on an airplane wing of area 20 m2 if the speed of air flow is 300 m/s across the top and 280 m/s across the bottom.


2. Homework Equations



3. The Attempt at a Solution

I have a feeling that this is an easy question, but i just don't know how to solve it!! Any hints would be greatly appreciated.
 

Answers and Replies

AlephZero
Science Advisor
Homework Helper
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Hint: there is a lift force is because the pressure on the top and bottom surfaces of the wing are different.

What equations do you know that relate pressure in a fluid to the speed of flow?
 
So that would be Bernoulli's equation, right?
But how would you use that in this case?
 

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