Energy-Momentum Relation
E = sqrt((p·c)^2 + (m·c^2)^2)
What it says
Ties energy, momentum and rest mass in one relation that holds even for massless particles.
Symbols
| Symbol | Quantity | Dimension |
|---|---|---|
E | Total energy (J) | M L^2 T^-2 |
p | Momentum (kg·m/s) | M L T^-1 |
m | Rest mass (kg) | M |
Work it out
Enter what you know. No account needed.
Fill in all but one: p, m, E are all empty.
Connects to
Filed under Relativity · derive through it in the explorer