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Homework Help: Wheel with radius and mass

  1. Mar 30, 2009 #1
    1. The problem statement, all variables and given/known data

    A wheel of radius R and mass M is dragged over a step of height h by force F applied horizontally at its center. What is the maximum value of F required so that the wheel climbs over the step? (Hint: wheel climb is equivalent to a rotation around the point of contact with the step.)

    2. Relevant equations

    Not available.

    3. The attempt at a solution

    I have no idea how to start this. But i would use potential energy perhaps?
  2. jcsd
  3. Mar 30, 2009 #2


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    Homework Helper

    You're going to want to consider the Σ Torques > 0 needed to pivot over the edge of the step as the hint suggests.
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