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:

    “She went in there to muse on being rid
    Of relative beneath the coffin lid.
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    —Gwendolyn Brooks (b. 1917)