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CBSE Class 11-science Answered

On the basis of Bernoulli's principle, explain the lift of an airplane.
Asked by Topperlearning User | 01 Aug, 2014, 10:54: AM
answered-by-expert Expert Answer

The cross-section of the wings of an airplane looks like the aerofoil with streamlines around it. When the aerofoil moves against the wind, the orientation of the wing relative to flow direction causes the streamlines to crowd together above the wing more than those below it. The flow speed on top is higher than that below it. There is an upward force resulting in a dynamic lift of the wings and this balances the weight of the plane.

Answered by | 01 Aug, 2014, 12:54: PM
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