Respuesta :

E = mc 

Start by dividing both sides by m

E/m = c/m^2

E/m = c^2

c = square root of em /m
             OR
c = - square root of em /m 

Answer:

c = + √ E

    __  __

           m

Step-by-step explanation:

E=mc^2 for c

E

_  = c^2

m