APPARATUS FOR DEMONSTRATING COLLISION IN TWO DIMENSIONS

This apparatus is used for demonstrating the principle of conservation of momentum and for showing that momentum is a vector quantity having direction as well as magnitude.

The apparatus consists of:

  1. A curved wooden ramp with a groove at its highest point. A steel sphere may be rolled down from the groove
  2. The ramp gradually levels off at the bottom.
  3. The striker sphere rolls along the groove down the ramp to the end of the level section.
  4. At the end of the level section of the apparatus is a small resting platform for the target sphere.
  5. The resting platform is an adjustable device, which attaches to the mounting plate and can be rotated into and out of the line (slightly offset) of motion of the striker sphere, for a head-on collision or for oblique impacts respectively.
  6. A plumb-bob for making the plumb line.
  7. Two spheres (steel ball bearings), 19mm in diameter.
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