How the flight is flying without falling on the ground? What's act against gravitational force there???

Answer 1

The air pressure created by the wings (and the speed, of course). Read more at the link below.

Answer 2

The short answer to your question is lift. Lift is the reaction if an inbalance of air pressure. As air moves across the top of a wing or airfoil, it has to travel a greater distance because the top of the wing is curved. Air moving faster creates a lower pressure compared to the air moving beneath the wing which is going in a straight line and a higher pressure. As a result, the wing is "sucked" upwards.
There are four main forces affecting any flying object, lift, gravity, drag and thrust.
Thrust opposes drag, which is air friction. As thrust overcomes drag, the plane begins to move forward. The faster the plane moves forward, the faster the air flows across its wings.
As the air across the wings increase, the wings generate the lift which is mentioned above. When the lift of the wings overcomes gravity, the plane rises up into the air.
With a rotor craft such as a helicopter, the engine turns the wings in the air. There is not thrust vs drag like in a plane, but the engine does have to do work to move the rotor in the air. The faster the rotor turns, the more lift is generated.
Now there are some other factors that have not been mentioned, such as angle of attack (the angle of the wings) control surfaces, torque, rolling friction of wheels, aerodynamics, etc, but that is another story for another day.

Answer 3

that's using fact the air planes fly above in the sky and the wings will act in one among those way that the strain of the air intense above the floor the place the airplane is flying to be in an state which will enable the airplane to fly that's the strain above the wing would be low and below the wing would be very intense. This U can see whilst U R vacationing in a highspeed prepare the air would be blowing on U R face with super tension. If U R status above the prepare say in a Overbridge the strain would be completely decreased.

Answer 4

Within the atmosphere lift is generated by airfoils that are part of the characteristic of the aircraft's wings--this includes helicopters, which are rotary-wing aircraft.

In these cases it is the density of the atmosphere that supports the aircraft.

Outside the atmosphere it is necessary to achieve orbital velocity, which for the earth is normally about 18,000 miles per hour, or about 28,000 Km per hour. In orbit a spacecraft is held aloft by centrifugal force, which should equal gravitational force at that point. If a spacecraft slows down it will gradually descend out of orbit.

You can illustrate centrifugal force by placing some sort of weight on a string and whirling it about. The force that holds it out is centrifugal force. The string acts much as gravitational pull does in orbiting spacecraft.

Answer 5

Because of the shape of the wing and the fact that the airplane is moving at a certain speed in the air, "lift" forces vertical to the wing and opposite to gravity form. These forces keep an airplane flying and basically deifying gravity.

If you want to understand how air can create lift on a wing you need to study aerodynamics and fluid dynamics.

Answer 6

Do you mean a wing? A wing works by pressure. The distance the wind has to travel over the wing is longer than travelling under the wind. This means that for the same amount of wind, the wind over top has to travel faster, and so creates a low pressure. Underneath the wing it is a high pressure which results in lift. I think this is how it works. Check out Wikipedia if you want more information

Answer 7

if u take the cross section of a wing when its tilted upwards from front the wind flows freely below the wind , causing low velocity and high pressure. on top of the wing the wind does not flow freely thus creating high velocity and low pressure region . now as u may know wind tends to move from high pressure area to low pressure area. so gradually the wings along with the plane is lifted up. and to remain in air the wings are positioned to stay aloft or stay in air.
a thing once started is so easy to continue if you keep on accelerating your motion.

Answer 8

From my reading it's a combination of things excess speed with the lift caused by the wings. The more speed you put on the higher and faster you will go.

Answer 9

The flight is flying without falling on the ground because their is a backward thrust is using to fly the air craft.........

Answer 10

i'll make it simple . the wings give pressure to their downside and as a result they are buoyed. This is also the reason for the flight of birds .