The center of gravity of a meterstick is not always located at the 50-cm mark. The center of gravity of a meterstick is located at the midpoint of the stick, which is 50 cm for a standard meterstick. However, if the meterstick is not uniform in density, the center of gravity will not be located at the midpoint. For example, if one end of the meterstick is made of a denser material than the other end, the center of gravity will be closer to the denser end.