How can photon have energy, but no mass if “m=E/c^2” (E= mc^2)

Question

How can photon have energy, but no mass if “m=E/c^2” (E= mc^2)

In: 42

Answer 1

Equations are not always true. Equations are true under certain conditions. 1+1 = 2 is not always true. 1 ft + 1 in. = 13/12 ft. 1 coin flip + 1 coin flip = 0 coin flips.

The equation you used works for massive particles at rest. The photon does not have mass.