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Feb4-07, 11:01 PM
P: 1,270
I'm very sorry, I don't quite get it...

In the other post, I also used 2mc^2 as the intrinsic energy to do a similar calculation.
Please see:

If I let "m" be the mass of ONLY the matter and let "m" be the mass of ONLY the antimatter, shouldn't the total intrinsic energy be mc^2+mc^2=2mc^2?

Say for example, if I get the answer for "m" to be m=12g, then I can say 12g of matter AND 12g of antimatter is needed for the spaceship to achieve escape velocity, right? (An EQUAL amount of matter and antimatter annilhilate, yes?)