Here's why:
* Gravity pulls the object down: Gravity is the force that makes things fall. It constantly accelerates the object downwards.
* Air resistance opposes motion: As the object falls, it pushes against the air. This creates a force called air resistance that acts in the opposite direction of the object's motion.
* Balance between forces: As the object falls faster, air resistance increases. Eventually, the force of air resistance becomes equal and opposite to the force of gravity.
* Terminal velocity: At this point, the object stops accelerating and falls at a constant speed called terminal velocity.
So, air resistance acts as a brake, slowing the object down and preventing it from accelerating indefinitely.
