Momentum Calculator

Linear momentum p = mv.

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Formula

p = m v

Momentum is mass times velocity. In closed systems, total momentum is conserved through collisions.

Worked example

3 kg at 8 m/s has momentum 24 kg·m/s.

Where this can give the wrong answer

  • Velocity sign indicates direction on a chosen axis.
  • Relativistic momentum needs γmv at high speeds.
  • Angular momentum L = Iω is a different quantity.

FAQ

Noether's theorem links spatial symmetry to conservation — central to collision analysis.