Here's why:

* Freefall means an object is falling solely under the influence of gravity.

* Gravity is the force of attraction between any two objects with mass. In the case of freefall, the object's mass is attracted towards the mass of the Earth.

* Air resistance can be a factor, but in a true freefall scenario, it's assumed to be negligible.

Let me know if you'd like to explore the concepts of gravity, freefall, or air resistance in more detail!