A plane remains on the ground primarily due to the force of gravity, which pulls it downward, and the friction between its tires and the runway surface. Additionally, the aircraft's weight, which is the result of its mass and the force of gravity, must be overcome by thrust generated by the engines for it to take off. Until the thrust exceeds the drag and the lift generated by the wings is sufficient to counteract gravity, the plane will stay grounded.
Lift: The force that keeps the plane flying.Drag: The force that slows down the plane. Weight: Theattractionto the ground.
The gravity.
Gravity keeps your feet on the ground. It is also what keeps every living and non living thing attached to the earth.
The wings. By increasing velocity over a surface (the top of the wing) a low pressure zone is created. The higher pressure under the wing pushes the wing upwards.Eventually the plane needs to return to the ground because the fuel powering it forward (creating the air foil) will run out.
on the ground
Propulsion is what keeps a jet in the air. Otherwise the plane has to fall down. Propulsion keeps the air always flowing over the wing which in turn keeps the plane afloat.
The force that keeps a plane in the air is lift, which is generated by the wings as a result of the shape and angle of the wings. This lift force counteracts the plane's weight, allowing it to stay airborne.
gravity
It keeps you on the ground.
Gravity.
Snow insulates the ground. It keeps the ground below it frozen which keeps the air around it cold.
keeps them on the ground, because gravity keeps them down