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 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` and `g = 9.81 ms^-2`.

A plane is in level flight at constant speed and each of its two wings has an area of 20m^(2). If the speed of rthe air is 180 km/h over the lower wing and 216 km/h over the upper wing surface, determine the plane's mass. (Take air density to be 1 kg m ^(-3) and g= 10m//s ^(2)).

A plane is in level flight at constant speed and each of its wings has an area of 25m^(2) . If the speed of the air is 180km//h over the upper wing surface, determine the plane's mass . (Take air density to be 1 kg//m^(3) ). g=9.8m//s^(2) .

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) respectively, then the mass of the plane is (Take the density of the air =1 kg m^(-3) )

A plane is in level fight at constant speed and each of two wings has an area of 25m^(2) . If the speed of the air on the upper and lower surfaces of the wing are 270kmh^(-1) and 234 kmh^(-1) respectively, then the mass of the plane is (take the density of the air = 1kg m^(-3) )

A plane is in level flight at a constant speed such that the speed of the air below the wings is "144 km h"^(-1) and above the wing is "180 km h"^(-1) . If each of its wings has an area of "25 m"^(2) , then the mass (in kg ) of the plane is [rho_("air")="1 kg m"^(-3),g=10ms^(-2)]

The speed of the wind passing over the wings of a small aeroplane is 70 m/s and below the wing is 60 m/s. If the mass of the plane is 1000 kg and the area of wing is 14 m^(2), then what will be ther net vertical force on the aeroplane ? ? (Density of air =1.2 kg//m^(3) and g=10 m//s^(2))

Air stream flows horizontally past an aeroplane wing of surface area 4 m^(2) . The speed of air over the top surface is 60 ms^(-1) and under the bottom surface is 40 ms^(-1) The force of lift on the wing is (density of air = 1 kgm^(-3) )