The impact of moment of inertia on downhill acceleration (info in comments)


The impact of moment of inertia on downhill acceleration (details in remarks)


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6 Comments

  1. From Wikipedia:

    >Four objects with identical masses and radii racing down a plane while rolling without slipping. From back to front: spherical shell (red), solid sphere (orange), cylindrical ring (green) and solid cylinder (blue). The time for each object to reach the finishing line depends on their moment of inertia.

    The solid sphere (orange) has the smallest moment of inertia, and the thin walled cylinder has the highest. In Layman’s terms the concentration of the mass about the object’s center of the mass impacts how easily it rotates. The solid sphere (most efficiently packed) has the least resistance to angular acceleration, while the thin walled cylinder (least efficiently) has the greatest resistance.

    If you have anything to add (or if I’m way off base), please do so.

    Edit: [Source](https://en.wikipedia.org/wiki/Moment_of_inertia)

  2. What about at the bottom? Which one would roll the furthest and/or the fastest on a flat level surface, a la pine wood derby style?

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