Here's why:
* Terminal velocity is the constant speed that a freely falling object eventually reaches when the force of air resistance equals the force of gravity.
* Force of gravity pulls the object downwards.
* Air resistance acts in the opposite direction, slowing the object down.
When these two forces become equal in magnitude and opposite in direction, they cancel each other out. This results in a net force of zero, meaning the object no longer accelerates and falls at a constant speed.
