Subtracting Two Vectors Geometrically


Find vector C (with its tail at the origin) such that C = A 
B.
To do this:
Drag each vector by the circle on its tail to the appropriate position.
Click "Lock" to lock the positon of the vectors. (A red circle will appear
at the origin).
Drag the red circle to where the tip of the arrow representing the sum ought
to be.
Click "Score" to see how you did. If you are correct, your vector will be
labeled.
Your answer must be ±8% of the correct answer.
Credits
Authored by Kevork Spartalian, University of Vermont, based on Davidson
College physlets.