Tables: Playground Physics: Determining the Moment of Inertia of a Merry-Go-Round

The Physics Teacher, Vol. 45, No. 2, pp. 85–87, February 2007
©2007 American Association of Physics Teachers. All rights reserved.

Previous section: FIGURES
Title Page

TABLES

Table I. A comparison of and I_MGR determined from the centripetal acceleration and from videoanalysis.
Calculated from a_c Observed in video % Difference
Moving out: omega _i = 2.63 ± 0.08 rad/s omega _i = 2.65 ± 0.08 rad/s 1%
omega _f = 1.63 ± 0.05 rad/s omega _f = 1.63 ± 0.05 rad/s 0%
I_MGR = 290 ± 40 kg · m² I_MGR = 285 ± 40 kg · m² 2%
Moving in: omega _i = 2.46 ± 0.07 rad/s omega _i = 2.58 ± 0.08 rad/s 5%
omega _f = 3.38 ± 0.10 rad/s omega _f = 3.70 ± 0.11 rad/s 9%
I_MGR = 410 ± 70 kg · m² I_MGR = 350 ± 60 kg · m² 16%
First citation in article

Previous section: FIGURES
Title Page

Table I. A comparison of and I_MGR determined from the centripetal acceleration and from videoanalysis.
	Calculated from a_c	Observed in video	% Difference
Moving out:	_i = 2.63 ± 0.08 rad/s	_i = 2.65 ± 0.08 rad/s	1%
	_f = 1.63 ± 0.05 rad/s	_f = 1.63 ± 0.05 rad/s	0%
	I_MGR = 290 ± 40 kg · m²	I_MGR = 285 ± 40 kg · m²	2%
Moving in:	_i = 2.46 ± 0.07 rad/s	_i = 2.58 ± 0.08 rad/s	5%
	_f = 3.38 ± 0.10 rad/s	_f = 3.70 ± 0.11 rad/s	9%
	I_MGR = 410 ± 70 kg · m²	I_MGR = 350 ± 60 kg · m²	16%