I think the reason for the word "relativity" should be explained on this page. What is relative, and why?
- appears to be done.
I thought E=mc
2 also applied when the mass was moving - no longer is kinetic energy separate, but bundled in with the increased mass of the object? Or is it - as I am thinking - that you're only using E=mc
2 to get the rest energy, then tacking on KE afterwards for that particular application? Perhaps this needs clarifying.
Dave McKee