Relative Velocity

The relative velocity (also or ) is the velocity of an object or observer B in the rest frame of another object or observer A. If it is constant,

where is A's velocity in the rest frame of B.

Read more about Relative Velocity:  Classical Mechanics, Special Relativity Theory, Example

Famous quotes containing the word relative:

    “It is an interesting question how far men would retain their relative rank if they were divested of their clothes.”
    —Henry David Thoreau (1817–1862)