Northwestern Physics Demos                                 Go back to Mechanics
DCS# 1E10.10NWU# M-?Location   end of 2 & 3
title: Bulldozer on Moving sheet
aka: Crossing the River

Toy bulldozer moves at a constant speed across a sheet of plastic on wheels.  The velocity of the bulldozer relative to the earth is seen as the vector addition of its velocity and that of the sheet.

   What direction do you aim the bulldozer so that it moves directly across a moving sheet?
pix of plastic "river"