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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. 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

`4.095Pa`

B

`409.5Pa`

C

`4095.0Pa`

D

`40.95Pa`

Text Solution

Verified by Experts

The correct Answer is:
C
`P+rhogh+(1)/(2)rhov^(2)=`constant
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