This is due to the shape of the aerofoil and propulsion
by flying in the air
The friction on the plane is the friction produced due to air.
flying air.
The plane was on the ground, not flying in the air.
air force one.
aerodynamics is the only thing.
Well the plane is flying through the air not through space. It is the pressure differential on the airfoils that make the plane move through the air.
Weight. Also, the moving air around the plane causes friction
He's flying on a plane! =)
The trim stops the plane from spinning around in the air while flying.
It depends on the angle of attack of the wing.
Trees grow from the ground. The ground is often lower than a plane. If the plane is lower than the ground, the passengers and crew are having a very bad day. Since the typical plane that is flying is flying higher than the trees in the vicinity, it is safe to conjecture that the air pressure around a typical tree is higher than the air pressure around a typical plane flying in the vicinity of those trees.