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If lift is greater than weight, the airplane proceeds up, away from the ground.

If lift is less than weight, the airplane proceeds down, toward the ground.

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15y ago

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What features does a paper plane need to land?

A paper plane should have proper balance and stability to ensure a smooth landing. It should have an aerodynamic design with curved wings to generate lift and control its descent. The angle of the wings and the weight distribution should be optimized to improve its landing capabilities.


What are the forces of a plane slowing down to land?

The main forces that slow down a plane during landing are drag, which is the air resistance that opposes the plane's motion, and friction between the landing gear and the runway. By reducing engine thrust and adjusting flaps and spoilers, the pilot can control these forces to safely decelerate the plane for landing.


What makes a flap move on a plane?

A flap on a plane moves by extending downward or backward from the wing surface. This increases the wing's surface area and changes its shape, which helps to generate more lift at lower speeds, allowing the plane to take off and land more slowly and safely. The pilot controls the flaps using the cockpit controls.


How do wings and propellers help airplanes fly?

In very simple terms, the propellers push air towards the back and as a result of Newton's third law, the action of [parts of] the plane pushing the air back, the plane is pushed forward.The cross section of the wing is such that the length along the front-to-back distance along its upper surface is greater than on its lower surface. This means that, as the plane moves forwards, the air going along the top of the wings must travel faster than the air flow below. The faster air exerts lower pressure and it is this that generates the lift.


How do plains fly?

Planes fly by generating lift from the wings as they move through the air. This lift is created by the shape of the wings and the speed at which the plane is moving. Engines provide the necessary thrust to propel the plane forward.