Table 1.

Mass and location of center of mass for the three sections of each L-shaped lever arm: the long arm, the short arm and the weight enclosure (see Fig. 4)

	Mass, m	$\stackrel{\wedge }{x}$	$\stackrel{\wedge }{y}$
Long arm	2.18 kg	30.10 cm	0.14 cm
Short arm	1.16 kg	0.19 cm	18.43 cm
Weight enclosure	Variable	62.23 cm	∼0