Αδρανειακό σύστημα αναφοράς: Διαφορά μεταξύ των αναθεωρήσεων

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imported>Jdlambert
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Γραμμή 1:
An '''inertial reference frame''' is one in which [[Newton's laws of motion|Newton's first and second laws of motion]] are valid.
 
Hence, within the inertial frame, an object or body [[acceleration|accelerates]] only when a physical [[force]] is applied, and (following [[Newton's laws of motion|Newton's first law of motion]]), in the absence of a net force, a body at [[rest (physics)|rest]] will remain at rest and a body in motion will continue to move uniformly—ie. in a straight line and at constant [[speed]].
 
==Equivalence of inertial reference frames==