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Mechanics

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 Joined: 1 Nov 2011 Post: 1
1 Nov 2011 11:38:33 IST
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Fluid Mechanics
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air is streaming past a horizontal airplane wing with 120 m/s over upper part and 90 m/s at the lower part. air density= 1.3kg/m^3. wing 10m long and 2m wide. What is the pressure difference between two sides of the wing??

Blazing goIITian

Joined: 22 May 2009
Posts: 2467
16 May 2012 21:06:39 IST
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The Preasure difference would be p*delta( v)

p=1.3

delta v=30

so the preasure difference is 39N/m^2

Blazing goIITian

Joined: 22 May 2009
Posts: 2467
16 May 2012 21:11:11 IST
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multiply the above answer by 2 its p*dv*l.here l=2

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