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October 20, 2014

Homework Help: Physics

Posted by mymi on Monday, November 7, 2011 at 3:34am.

An airplane is moving through the air at a velocity v = 227 m/s. Streamlines just over the top of the wing are compressed to 80% of their original area, and those under the wing are not compressed at all.
(a) Determine the velocity of the air just over the wing.

(b) Find the difference in the pressure between the air just over the wing, P, and that under the wing, P'. (The density of air is 1.3 kg/m3.)

(c) Find the net upward force on both wings due to the pressure difference, if the area of the wing is 44 m2 and the density of the air is 1.3 kg/m3.

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