Optional: an 8 foot length of 2" x 2" and a 1 kg weight. What it does: A meter stick is supported on the two forefingers. The fingers are moved slowly together and end up at the center of gravity of ...

A metre stick is supported horizontally on two fingers symmetrically placed. The fingers are pushed toward each other. The metre stick is supported as in I but the support is asymmetric. Consider each ...