The acceleration of an object that reaches terminal velocity is zero .

Aqui está o porquê:

* Velocidade do terminal: A velocidade terminal é a velocidade constante que um objeto de queda livre acaba chegando quando a força da resistência do ar é igual à força da gravidade.
* Forças em equilíbrio: At terminal velocity, the forces acting on the object are balanced. The downward force of gravity is exactly counteracted by the upward force of air resistance.
* Segunda Lei de Newton: Newton's Second Law of Motion states that acceleration is directly proportional to the net force acting on an object. Since the net force is zero at terminal velocity, the acceleration is also zero.

em termos mais simples: Once an object reaches terminal velocity, it stops accelerating and falls at a constant speed.