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1D Collisions

This interactive simulator explores 1D Collisions in Classical Mechanics. Elastic and inelastic collisions with momentum and energy tracking. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.

Who it's for: Suited to beginners and first exposure to the topic. Typical context: Classical Mechanics.

Key terms

  • collisions
  • 1d collisions
  • mechanics
  • classical

How it works

One-dimensional collision with coefficient of restitution e: relative speed after along the line of centers is −e times the relative speed before. e = 1 elastic, e = 0 perfectly inelastic (sticking). Momentum is conserved if no external impulse.

Key equations

v₁′ = v₁ − (1+e)m₂(v₁−v₂)/(m₁+m₂)
v₂′ = v₂ + (1+e)m₁(v₁−v₂)/(m₁+m₂)

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