1.

Air is streaming past the wings of an acroplane with a speed of 90ms^(-1) below and 120ms^(-1) above the surface. If the wing is 15 m long and has an average width of 2m, then: Density of air =1.2kg//m^(3)]

Answer»

Pressure difference between the BOTTOM and top of he wing is4090 Pa
Up - lift on the wing is 81900 N
Up - lift on the wing is 113.58 K N
Pressure difference between the bottom and top of wing is 3780 Pa

Answer :C::D


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