Problem: A massless rod of length L has a mass m fastened at one end and a mass 2m fastened at the other end. What is the ratio of the moment of inertia about an axis through the mass m to the moment of inertia through the center of the rod? 1. 3/2 2. 4/3 3. 3/4 4. 2 5. 8/3 6. 3/8 7. 2/3 8. 1/2

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Problem Details

A massless rod of length L has a mass m fastened at one end and a mass 2m fastened at the other end. What is the ratio of the moment of inertia about an axis through the mass m to the moment of inertia through the center of the rod?

1. 3/2

2. 4/3

3. 3/4

4. 2

5. 8/3

6. 3/8

7. 2/3

8. 1/2

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Our tutors have indicated that to solve this problem you will need to apply the Parallel Axis Theorem concept. You can view video lessons to learn Parallel Axis Theorem. Or if you need more Parallel Axis Theorem practice, you can also practice Parallel Axis Theorem practice problems.

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Based on our data, we think this problem is relevant for Professor Garcia's class at COLUMBIA.