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Rolling Motion Down an Incline

  1. Nov 6, 2006 #1
    The five masses below all have the same radius and a cylindrically symmetric mass distribution. They start to roll down an inclined plane, starting from rest, at the same time and from the same height. Give their order of arrival at the bottom.

    Icm=684 g*cm2, M = 47g

    Icm=373 g*cm2, M = 41g

    Icm=415 g*cm2, M = 44g

    Icm=600 g*cm2, M = 50g

    I found the ratio by dividing inertia/mass. I thought it was the one with the lowest ratio reaches the bottom first...but why am I not getting the right answers?!:confused:
  2. jcsd
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