Moment of inertia question; tube, solid cylinder on inclined plane.

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When comparing a tube and a solid cylinder of identical dimensions and density rolling down an inclined plane, both objects will cover the same distance in the same amount of time. The acceleration is the same for both due to their similar mass and dimensions. Although the solid cylinder has greater potential energy due to its mass, this does not affect the outcome because mass cancels out in the energy conversion equations. The rolling motion does not alter the fundamental relationship between potential and kinetic energy for these objects. Thus, both will behave identically in terms of distance and time on the incline.
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If you have a tube and a solid cylinder of the same dimensions and density and rolled them down an inclined plane the 'tube' would cover the same distance in less time?
 
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I'm pretty sure that the answer is the same distance at the same time. Both tubes have the same acceleration throughout their motions. I don't think it matters that they're rolling. The solid one has more potential energy because of its greater mass, but in the equation for conversion of potential energy to kinetic energy the mass cancels out.
 

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