instantaneous velocity

  1. Noun.  the velocity of an object at any given instant (especially that of an accelerating object).
  2. Noun.  (mathematics) the limit of the change in position per unit time as the unit of time approaches zero; expressed mathematically as lim_{t o 0} frac{Delta x}{Delta t} .

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This entry was last updated on RefTopia from its source on 3/20/2012.