-- gravity
-- air resistance
Air pressure.
When two or more forces affect an object at the same time it creates a net force.
falling objects.
Gravity: The pull of two objects on each other.Inertia: Basically something that slows any kind of acceleration or deceleration on a moving object.Yup, those two are the main forces that act on a falling object.
The force of gravity, which pulls it down; and friction forces, which pull it up.
Gravity is one, and I believe that friction is the other. Friction here being caused by the resistance to motion of the fluid the object is falling in. Generally this is termed air resistance or drag and it is related to the object's velocity and cross section as well as the fluid's viscosity.
Gravity and friction.
friction and gravity
Gravitational force and the force of friction (the friction of the object and the air).
The force that pulls an object toward earth also pulls the earth toward the object. The two forces are equal. Together, we refer to them as the forces of gravity.
Friction and Gravity are the two forces that affects an object's velocity. Friction is caused by both air and the surface on which an object is moving. Gravity is caused by Earth.
Sometimes. If an object is falling, it's position relative to the Earth, will affect its velocity. Between two parallel electric plates, the velocity of an charged oil drop is independent of its position (more or less).