Proof that a negative mass causes superluminal speeds?

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pantheid
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I've heard this theory, based on the assumption that if negative mass objects exist, they would travel faster than light. I planned on mentioning this in a physics paper I have to write for my class, but I just realized that I have no idea what formula shows this correlation. Can somebody help me?

Bonus question: C is the maximum speed limit for normal objects, so for negative mass objects, would C be the minimum speed limit? Just a thought.
 
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What is negative mass? Will you please cite some reference for it?
 
pantheid said:
I've heard this theory, based on the assumption that if negative mass objects exist, they would travel faster than light.

Not in any conventional physics book, article or class you didn't. I would abandon this line of reasoning.
 
Oh, so that's why I couldn't think of a formula as proof: there is none. Thanks for the help guys.