Air is streaming past a horizontal air plane wing such that its speed in $$120$$ $$m/s$$ over the upper surface and $$90$$ $$m/s$$ at the lower surface. If the density of air is $$1.3$$ kg per $$metre3$$ and the wing is $$10$$ m long and has an average width of $$2$$ m, then the difference of the pressure on the two sides of the wing of

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Infinity Learn · Accepted Answer

From the Bernoulli's $$theoremP1$$−$$P2=12$$ρ$$(v22$$−$$v12)=12$$×$$1.3$$×[$$(120)2$$−$$(90)2$$]$$=4095$$ $$N/m2$$ or Pascal

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