<h2>
Answer: the falling time</h2>
Explanation:
When a body or object falls, basically two forces act on it:  
1. The force of air friction, also called<em> </em><u><em>"drag force"</em></u>  :
:  
 (1)
  (1)
Where:  
 is the drag coefficient
 is the drag coefficient  
 is the density  of the fluid (air for example)
 is the density  of the fluid (air for example)
 is the velocity
 is the velocity  
 is the transversal area of the object
 is the transversal area of the object 
So, this force is proportional to the transversal area of the falling element and to the square of the velocity.  
2. Its <u>weight </u>due to the gravity force  :
:  
 
 
(2)
Where:  
 is the mass of the object
 is the mass of the object
 is the acceleration due gravity
 is the acceleration due gravity  
So, at the moment <u>when the drag force equals the gravity force, the object will have its terminal velocity:</u>
 (3)
 (3)
 (4)
  (4)
 (5) This is the terminal velocity
  (5) This is the terminal velocity
As we can see, there is no "falling time" in this equation.
Therefore, the terminal velocity is not dependent on the falling time.