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Homework Help: Dynamics Problem

  1. Feb 27, 2005 #1
    I have kind of a simple concept from Dynamics that I can't really visualize. Assume that there is a bar on a roller that is spinning (both ends are free; it is rotating about a point near the middle) and translating in the x-direction. Will a force applied to one of the free ends in the x-direction cause the roller to move along the x-direction? It should, according to the equation F=ma (x-direction). But won't this simply cause it to spin about it's center? Thank you.
  2. jcsd
  3. Feb 27, 2005 #2

    James R

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    It depends on whether the central axis of the roller is fixed to something else. If it isn't, it will move in the x direction when the force is applied.
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