• Oct 20, 2025 E Mc2 Units re equation: E = m c² Substituting the units, we get: Joules (J) = kilograms (kg) (meters/second)² (m²/s²) Simplifying, we see: J = kg m²/s² This demonstrates that the units on both sides of the equation are consistent. A joule is indeed equivalent to a kilogram-meter squared per By Rodolfo McCullough
