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an aeroplane has a total mass of 3.6 into 10 ki power 4 kg and total Wing Area of 60 m square when it is in level flight at some height and pressure difference between the upper and lower surfaces of the wings is

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Q. An aeroplane of mass

3 \times 10^{4} k g

and total wing area of

120 m^{2}

is in a level flight at some height. The difference in pressure between the upper and lower surfaces of its wings in kilopascals is :

(g = 10 m / s^{2})

Q. An aeroplane of mass 3

\times

^{4}

kg and total wing area 120m

^{2}

is in a level flight at same height.The difference in pressure between the upper and lower surface of its wings in Kilo Pascal is( g

=

^{- 2}

Q. A fully loaded Boeing aircraft has a mass of

3.3 \times 10^{5}

kg, its total wing area is

500 m^{2}

. It is in level flight with speed of 960 km/h. (a) Estimate the pressure difference between the lower and upper surfaces of the wings. (b) Estimate the fractional increase in the speed of the air on the upper surface of the wing relative to lower surface. (The density of air is

ρ = 1.2 k g m^{- 3}

Q. An aeroplane of mass

5000

kg is flying at an altitude of

3

km. If the area of the wings is

50

m^{2}

and pressure at the lower surface of wings is

0.6 \times 10^{5}

Pa, the pressure on the upper surface of wings is?(in pascal)

(g = 10 m s^{- 2})

Q. A plane is in a level flight at a constant speed and each of its two wings has an area of

50 m^{2}

. If the speed of air is

180 km/h

over the lower wing surface and

252 km/h

over the upper wing surface, the plane's mass is [Lift force on the wings = weight of plane]
(Take density of air =

1 {kg/m}^{3}

g = 10 {m/s}^{2}

)

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