basic

Elastic Collision Final Velocities Calculator

v1' = (m1−m2)v1/(m1+m2) + 2m2v2/(m1+m2) — 1D elastic collision.

Calculates final velocities after a one-dimensional perfectly elastic collision between two objects using conservation of momentum and kinetic energy.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

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Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

v1' = (m1−m2)v1/(m1+m2) + 2m2v2/(m1+m2)

In depth

Calculates final velocities after a one-dimensional perfectly elastic collision between two objects using conservation of momentum and kinetic energy.