Bulldozer on Plastic Sheet (1E10.10)

Description:

One battery powered vehicle runs at a constant speed across the lecture table while a second runs across on a large sheet of plastic. Push or pull on the plastic sheet to show how velocities add or subtract. This can be done in one dimension or two; or used for frames of reference discussions.

Procedure or Operation Notes:

1D:

2D:

Please be careful and don't let the carts run off the table.

References, Comments, or Footnotes:

The name is from the original motorized bulldozers: