* Forces at play: When an object falls through the air, two main forces act upon it:
* Gravity: This force pulls the object downwards, constantly accelerating it.
* Air Resistance (Drag): As the object falls faster, it encounters more air resistance, which opposes its motion and acts upwards.
* The Balance: As the object accelerates, air resistance increases. Eventually, the upward force of air resistance becomes equal in magnitude to the downward force of gravity. At this point:
* Net force becomes zero: Since the forces are balanced, there's no net force acting on the object.
* Acceleration stops: With no net force, the object stops accelerating and falls at a constant speed.
* Terminal Velocity: This constant speed, where the forces are balanced and the object is no longer accelerating, is known as terminal velocity.
In essence, terminal velocity is achieved when the force of gravity pulling the object down is perfectly balanced by the force of air resistance pushing it up. This balance of forces is what defines terminal velocity.
