Collision Simulator

Set the mass and speed of each block, choose Elastic or Perfectly Inelastic, then press Launch. The blue block moves right, the red block moves left (set speed to 0 for a stationary target). Final velocities and conservation of momentum are shown after the collision.

Block 1 (Blue) — Left

Moves rightward →

Collision Type

Block 2 (Red) — Right

← Moves leftward  (0 = stationary)

Collision Results

Block Mass (kg) v initial (m/s) v final (m/s)