• Question: What is e=mc2 duivided by 2 is it half the speed of light?

    Asked by speedmono to Andy on 16 Jun 2011.
    • Photo: Andy MacLeod

      Andy MacLeod answered on 16 Jun 2011:

      Hi speedmono. e=mc2 describes the equivalence of mass and energy, related by the speed of light “c”. If you divide the right hand side of the equation by 2, you’d get (m/2) x (c^2/2). The 2s don’t cancel there as one of them is a “squared”.

      As far as I understand it, that describes the amount of energy in an object of mass (m/2), but you might want to ask a physicist to be sure. 8)

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