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.
    No one was by. She stuck her tongue out; slid.
    Gwendolyn Brooks (b. 1917)