What is Final Velocity?
In what context did you come across that expression?
the magnitude and direction of speed at the end of process
If you are talking about "terminal velocity", this term is sometimes (or always?) when objects go through restrained acceleartion. That is, the object's acceleration is not constant and is constantly decreasing until it reaches zero. The velocity when the acceleration is zero, is the terminal velocity.
Could also be talking about collision or something else, though.
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