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Grade: 9
        
The velocity of the wind over the surface of the wing of an aeroplane is 80mps and under the wing 60mps. If the area of the wing is 8m2 , the dynamic lift experience by the wing ( density of air is 1.3kg.m-3)
6 months ago

Answers : (1)

Vikas TU
7091 Points
							
From Bernoulli’s equation,
P1 + 0.5pv1^2 = P2 + 0.5pv2^2
P1 – P2 = 0.5p(v2^2 – v1^2) => 0.5*1.3*(80^2 – 60^2) => 1820
 
Lift = Preseure*A => (P1 – P2)*A => 1820*8 => 14560 N.
 
6 months ago
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