A fully loaded being aircraft has a mass of 5.4 x 10 5 kg. Its total wing area is 500 m 2 . It is in level flight with a speed of 1080 km/h. If the density of air 
is 1.2 kg m -3 , the fractional increase in the speed of the air on the upper surface of the wing relative to the lower surface in percentage will be (g = 10 m/s 2 )
Text Solution
Verified by ExpertsThe correct answer is:
D
P 2 A - P 1 A = 5.4 x 10 5 x g
P 2 -P 1 = 
= 5.4x2x10 2 x10
=10.8x10 3
P 2 + 0+ 
V 2 2 = P 1 +0+ 
10.8x10=3.6(V 1 -V 2 )
V 1 - V 2 = 30
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