An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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average acceleration
  شتاب ِ میانگین  
šetâb-e miyângin
Fr.: accélération moyenne  

Of a body traveling from A to B, the change of → velocity divided by the time interval: ā = (v2 - v1) / (t2 - t1).

See also: → average; → acceleration.