The net force on a following object
"Free fall" means that gravity is the only force acting on a body.
The force that changes is air resistance and the force that stay the same is gravity.
Gravity and Resistance Under free fall, the only force acting upon an object is the force of gravity. But realistically, there is also the force of friction from the air (Air Resistance) that opposes the force of gravity.
Terminal Velocity
Gravity and air resistance.
It isn't, necessarily. But the force of gravity is constant, whereas the force of air resistance depends on how fast you're moving through the air. So when you begin to fall, gravity is stronger, and it makes you fall faster and faster. But as your speed increases, so does the force of air resistance, and eventually, the force of air resistance builds up to be equal to the force of gravity. At that point, you keeep falling, but your speed doesn't grow any more.
Gravity and air resistance.
It doesn't. The force of gravity depends on the masses involved, and their distance. However, air resistance can introduce other forces, that counteract the force of gravity.
Gravity
Gravity and air resistance.
Air Resistance is a force that pushes up against gravity.
Air resistance has no effect on gravity. The force of friction due to air resistance against a falling object balances part or all of the gravitational force, depending on the object's shape and speed through the air ... just as your hand or a rubber band attached to the object would ... but the full force of gravity is still there.