C1-01
Demonstrate motion of the center of mass of an asymmetric object.
A barbell with unequal ends is thrown through the air. The center of mass (red spot near large end) moves in a smooth parabolic arc despite the gyrations of the two asymmetric ends.

An animation of the movement of an object of this kind can be viewed at http://www.acs.psu.edu/drussell/Demos/COM/com-a.html

C1