Question

Energy and mass are related by the formula

E = mc².
m is the mass of the object
c is the speed of light
Solve the equation for the mass of the object, m.

Answer 1

m=E/c².

Explanation:

Transposing the formula

E=mc²

we divide both sides by c² then cancel out where necessary so m would stand alone

E/c²=mc²/c²

cancelling c² on the right hand side, equation becomes

m= E/c²