An apparatus similar to the one used in this experiment is used to run the same experiment. Two equal masses are placed at different radii and Kaleidagraph is used to make a plot of I vs. r2. The equation of the best fit line is found to be:
I = 0.342 x r2 + 8.97.
r is measured in meters and I is measured in kg*m2.
What is the mass of one of the two equal masses?
When both of the masses are placed at r=0, what is the moment of inertia of the apparatus (including the two masses)?