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Universal Law of Gravitation

4.A plane is ...

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4.A plane is in level flight at constant speed and each of its two wings has an area of 25 m square. if the speed of the air is 180 kilometre per hour over the lower wing and 234 kilometer per hour over the upper wing surface, determine the plane's mass. (take air density to be 1 kg per metre cube).

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Q. A plane is in level flight at constant speed and each of its two wings has an area of 25 m². If the speed of the air is 180 km/h over the lower wing and 234 km/h over the upper wing surface, determine the plane’s mass. (Take air density to be 1 kg m¯³).

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

25 m^{2}

. If the speed of air is

180 k m h^{- 1}

over the lower wing and

234 k m h^{- 1}

over the upper wing surface, the plane's mass is : (Take density of air

= 1 k g m^{- 3}

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}

)

Q. A plane is in level flight at constant speed and each of its two wings has an area of 25 m

^{2}

. If the speed of the air on the upper and lower surfaces of the wing are 270 km h

^{- 1}

^{- 1}

respectively, then the mass of the plane is (Take the density of the air = 1 kg m

^{- 3}

)

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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