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Lift is the upward force that opposes the force of gravity.
Compressible fluid force opposes lift. Lift is the upward force due to the fluid flow around an airplane wing. Weight is a downward force caused by gravity which opposes lift.
Any force with an upward vertical component does.
Essentially there are 4 aerodynamic forces that act on an airplane in flight; these are lift, drag, thrust and gravity (or weight).In simple terms, drag is the resistance of air (the backward force), thrust is the power of the airplane's engine (the forward force), lift is the upward force and gravity is the downward force. So for airplanes to fly, the thrust must be greater than the drag and the lift must be greater than the gravity (so as you can see, drag opposes thrust and lift opposes gravity).This is certainly the case when an airplane takes off or climbs. However, when it is in straight and level flight the opposing forces of lift and gravity are balanced. During a descent, gravity exceeds lift and to slow an airplane drag has to overcome thrust.
Actually thrust is aerodynamically involved, its the driving force that accelerates the aircrafts in forward direction and the opposite force is drag. The opposing force against gravity in a flight is lift.
Lift opposes gravity and drag opposes thrust. An airplane turns using a small amount of vertical lift vectored in a horizontal direction. gravity from below, the wind currents, atmospheric pressure and weight of the plane from above.
Drag
Thrust is the forward motion of the airplane provided by the engines. Lift is the upward force on an airplanes wing.
The force of gravity opposes acceleration away from the source of the gravity. This is expressed as "centrifugal force" or the perpendicular component of a tangential velocity. The balance between these keeps the planets in orbit around the Sun.
No, gravity is a downward force.
The upward force is the reaction force of gravity; it is weight, which is mass x acceleration of gravity
These forces are called drag and gravity. Gravity is the downward force on the plane, keeping it from flying, but if the lift, the opposing force, is strong enough, you will achieve flight. Drag is the force pulling you back, making it harder to go forward. This force is produced by air pressure on the front of the plane. The opposing force in this case is thrust, which makes the plane move forward.