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Two-body motion

  • Before start, the two bodies are capable to be dragged (mouse or touch) to move.
  • Before start, the velocities (not the radial arrows) are capable to be modified by dragging (mouse or touch) their tips.
  • After a change from CM Frame of Reference to Lab Frame of Reference is made, the CM will move when at least the velocity of one of the two bodies is modified.

Author and copyright holder:

Chiu-king Ng

Feedback/Contact: where XY is the prime number following 23

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Last Update:

June 10, 2017

Html5 Physics