Here's why:

* Freefall: This term implies that the object is moving under the sole influence of gravity. There are no other forces acting on it, like air resistance, friction, or thrust.

* Gravity: The force of attraction between any two objects with mass.

Important Notes:

* Air Resistance: While technically freefall means no other forces besides gravity, in real-world situations, air resistance will always be present to some degree. However, if the air resistance is negligible compared to gravity, we can still consider the motion as approximately freefall.

* Terminal Velocity: As an object falls, air resistance increases until it balances the force of gravity. At this point, the object stops accelerating and reaches its terminal velocity.

Let me know if you'd like to delve into any specific aspects of freefall, like its equations of motion!