Which of the following are NOT potential sources of random uncertainty in the experiment?

A) The calibration of the motion detector

B) The levelness of the string attached to the glider (i.e., how close it is to horizontal)

C) The mass of the weights

D) Friction between the string and pulley

Question

Which of the following are NOT potential sources of random uncertainty in the experiment?
		
 A) The calibration of the motion detector
		
B)  The levelness of the string attached to the glider (i.e., how close it is to horizontal)
		
C)  The mass of the weights
		
D)  Friction between the string and pulley

anonymous · Answer

I've tried to answer this question multiple times because I thought I knew the difference between systematic and random error but I keep getting the incorrect answer. Help?

anonymous · Answer

Its everything but C. Thanks for the help anyway...