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Physics 211, Quiz 22

Question 1: A ball of mass m = 2 kg is whirled around by a string of length l = 75 cm. What is the moment of inertia of the ball? 
  Answer: 

            I   =  (mass) * (distance from axis)^2

                =  (2 kg) * (0.75 m)^2

                =  1.125 kg-m^2

Creative Commons License Copyright © Michael Richmond. This work is licensed under a Creative Commons License.