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Homework Help: Bernoullis Equation?

  1. Aug 22, 2007 #1
    1. The problem statement, all variables and given/known data

    If wind blows at 35 m/s over a house, what is the net force on the roof if its area is 240m^2 and is flat?

    2. Relevant equations

    Bernoulli's equation.

    3. The attempt at a solution

    I have no idea how to belgin =|
  2. jcsd
  3. Aug 23, 2007 #2


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    Homework Helper

    I think you can use dynamic pressure = [tex]\frac{density * velocity^2}{2}[/tex]

    Then use pressure = force/area.
  4. Aug 23, 2007 #3

    Doc Al

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    Staff: Mentor

    To find the net force on the roof, compare the reduced pressure of the moving outside air to the pressure of the air within the house.
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