how much does an aeroplane weigh while its flying?

Answer 1

Since the plane flies by producing thrust and thereby offsetting its weight, the weight in flying state is zero. The mass remains the same as it was on the ground.

Answer 2

The acceleration due to gravity decreases as the distance from the center of earth increases. Therefore, the weight of the plane must be less than that when it was on ground.

The general formula to find g at a place is g = 9.80616- 0.025928 cos2L + 0.000069cos^2(2L) - 0.000003 h; L is the latitude at the place and h is the height from sea level.

As plane moves from place to place the value will be changing accordingly.

Further the above formula is when the plane is at rest at a height from the ground, taking into consideration the effect of rotation of the earth about its axis.

Since the plane is moving with some speed, depending upon the speed and the place over which the plane is flying, the weight ( the force the plane exerts on the air will be still less than the above value.

To make it still clear, the up thrust needed to keep the plane at that point will be less.

Answer 3

For all practical purposes, it weighs the same as it does on the Earth. Technically, it weighs a little less since it is a farther distance from the Earth's surface.

It is able to stay in the air because the force of lift is equal to the weight.

Answer 4

same as its weight on the ground; if the motion of the plane stops, it will fall as the action of that weight; only the rushing of air against the aerofoils keeps it aloft

Answer 5

the answer must be some number of kilograms, since you called it an aeroplane.

if you had said airplane, the answer would have been in pounds.

Answer 6

The same as when it is sitting still.