Time (s)	Coeff. of Fric. (exp.)	Coeff. of Fric. (calc.)	Difference	
0		0.41			0.59			 0.18
120		0.84			0.63			-0.21
240		0.70			0.66			-0.03
360		0.82			0.70			-0.12
480		0.51			0.73			 0.22
600		0.80			0.76			-0.04
720		0.54			0.80			 0.25
840		1.22			0.83			-0.38
960		0.72			0.87			 0.15
1080		0.94			0.90			-0.04
1200		0.91			0.94			 0.02
					Average Uncertainty:	 0.32