In a test experiment on a model aeroplane in a wind tunnel, the flow speeds on the lower…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
In a test experiment on a model aeroplane in a wind tunnel, the flow speeds on the lower and upper surfaces of the wing are v and \(\sqrt{2} \mathrm{v}\) respectively. If the density of air is ρ and the surface area of the wing is A, the dynamic lift on the wing is given by
- \(\frac{1}{\sqrt{2}} \rho \mathrm{v}^{2} \mathrm{~A}\)
- \(\frac{1}{2} \rho v^{2} A\)
- \(\sqrt{2} \rho v^{2} A\)
- \(2 \rho v^{2} A\)
Answer
(B) 1 2 v^ 2 A
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