Conservation of momentum in 2D.
Collisions are not very elastic with 20 – 50 % energy loss typical. We also have pucks that repel using magnets, and for these the collisions are closer to ideal. The video camera is installed about 2.5 meters above the table. VideoPoint is used to analyse the motion, with average velocities calculated before and after the collision.
NCEA & Science Curriculum
Video camera should be installed well above the table.
Individual teachers are responsible for safety in their own classes. Even familiar demonstrations should be practised and safety-checked by individual teachers before they are used in a classroom.
2D Motion on an Air Table
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