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Air is streaming past a horizontal airpl...

Air is streaming past a horizontal airplane wing such that its speed is `90 ms^(-1)` at the lower surface and `120 ms^(-1)` over the upper surface. if the wing is `10 m` long and has an average width of `2 m`, the difference of pressure on the two sides and the gross lift on the wing respectively, are (density of air `=1.3kgm^(-3)`)

A

4095.0 pascal

B

409.50 pascal

C

40.950 pascal

D

4.0950 pascal

Text Solution

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The correct Answer is:
A
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