Both rods are the same length and weight; however, the mass is distributed differently in the two rods. One rod has its weights concentrated in the center and the moment of inertia is very low. The other rod has its weights concentrated at the ends, making the moment of inertia very high. The higher the moment of inertia, the more difficult it becomes to spin/rotate the rod.
(1Q10.10) Moment of Inertia Rods
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Both rods are the same length and weight; however, the mass is distributed differently in the two rods. One rod has its weights concentrated in the center and the moment of inertia is very low. The other rod has its weights concentrated at the ends, making the moment of inertia very high. The higher the moment of inertia, the more difficult it becomes to spin/rotate the rod.
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