Recent content by TyloBabe

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    What Is the Minimum Velocity Needed for a Wheel to Climb a Step?

    What I was thinking was saying that the initial angular momentum about the center of the disc, would be equal to the angular momentum of the disc about the point of contact on the step. Would that be correct? I see what you mean about the torque. The normal force on the disc at the step acts...
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    What Is the Minimum Velocity Needed for a Wheel to Climb a Step?

    Homework Statement A solid wheel of mass M and radius R rolls without slipping at a constant velocity v until it collides inelastically with a step of height h < R. Assume that there is no slipping at the point of impact. What is the minimum velocity v in terms of h and R needed for the...
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    Ball starting at rest down a frictionless incline

    Thanks to everyone who replied. K^2 and Driftwood's answers were the ones for which I was looking. It's not that the using the contact point as the axis is invalid, it's just that, as K^2 said, the angular velocity about that point is increasing due to the torque, but in this case all that...
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    Ball starting at rest down a frictionless incline

    Not exactly. I'm currently just in the classical mechanics section of freshman physics for engineers, so when we're discussing torques we don't bring into account things like Planck yet. To be perfectly honest, I wouldn't know how Planck applied in this situation; I only have a basic...
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    Ball starting at rest down a frictionless incline

    This is not a question from homework, but one about which I was curious. If a ball starts at rest at the top of frictionless plane, would it roll or slide down the incline? The thing that confuses me is that it seems like it should just slide, since there is no friction and thus nothing to...
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