Increasing Rotational Inertia
Think about the question below. Only one of the answers listed is correct. We'll do some (but probably not all) of these questions in the lectures when you will all be asked to vote on which answer you think is correct. (Soon afterwards, you'll be able to see your responses, and those of the whole class at EVAF.)
To increase the rotational inertia of a solid disk about its axis without changing its mass:
1 | drill holes near the rim and put the material near the axis |
2 | drill holes near the axis and put the material near the rim |
3 | drill holes at points on a circle near the rim and put the material at points between the holes |