Fluids (bernoulli's equation)

  • Thread starter 2Pac
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  • #1
2Pac
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During high winds, the atmospheric pressure inside a house may blow off the roof because of the reduced pressure outside. Calculate the force on a square roof of side 22.0 m if the wind speed over the roof is 29.0

i used bernoulli's equation and got an answer of... 246356N
i used 1.21 as the density of air. could someone check my work please?
 
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Answers and Replies

  • #2
2Pac
37
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anyone care to try?
 
  • #3
mukundpa
Homework Helper
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Pi = Po + 0.5d V^2
F = (Pi-Po)A = 0.5 d V^2 ; d is the density = 1.293 kg/m^3
 

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