Relativistic Momentum

The Relativistic Momentum calculator computes the momentum (p) as function of the mass (m), relativity factor (γ), and the velocity (v) 

INSTRUCTIONS: Choose the preferred units and enter the following:

• (m)  This is the mass
• (γ) This is the relativity factor.
• (v) This is the velocity

Relativistic Momentum (p): The momentum is returned in kilograms meters per second (kg•m/s).  

The Math / Science

The Relativistic Momentum  is found using the following formula:

      p = m•γ•v

where:

• m = mass
• γ = relativity
• v = velocity

Mass-Energy-Light Calculators

• E = m•c² (mass/energy equivalent)
• m = E/c² (mass from energy)
• E = m•γ•c² (mass/energy equivalent not at rest)
• E = h•ν (Quantum Energy)
• p = m•γ•v (Relativistic Momentum)
• c (Speed of light) = 2.99792458E8 m/s
• c² (Speed of Light Squared) = 931.46 MeV/u
• Lorentz factor (`gamma`)
• KE ≈ m(1+v²/(2c²)-1)c² (Relativistic Kinetic Energy)

References

26.5 Relativistic mass and energy by Benjamin Crowell, Light and Matter  licensed under the Creative Commons Attribution-ShareAlike license.