Mr Skeptic Posted December 25, 2008 Share Posted December 25, 2008 Is it possible for a particle to have a momentum vector pointing the opposite direction to its velocity vector? Or is that forbidden by the laws of physics? Link to comment Share on other sites More sharing options...
ydoaPs Posted December 25, 2008 Share Posted December 25, 2008 Perhaps if it had a negative mass. Link to comment Share on other sites More sharing options...
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