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Velocity Of Particle

Velocity of particle, regardless of its charge and mass, can be calculated using following formula:

To calculate speed in meters per second, multiply it by speed of light, 299,792,458 m/s.

This appears to be working good also for relativistic and rest mass:

And particle frequency:

When particle can't be at rest (like for example photon or neutrino), E0, M0 and f0 are all 0, and equation simplifies to v=1.

Derivation