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Homework Help: Cue ball rolling motion

  1. Dec 7, 2008 #1
    1. The problem statement, all variables and given/known data
    A cue ball is hit 4.5 cm above the horizontal surface uk = 0.35 it is on.
    The ball is 6 cm in diameter and has a mass of 250 g. It is hit
    by a cue stick with an average force of
    6000 N during a contact time of 20 usec.

    (a) What is the ball’s speed after it is hit?

    2. Relevant equations


    3. The attempt at a solution
    I cant figure out the effect being hit above the equator has and how to incorporate it?
  2. jcsd
  3. Dec 8, 2008 #2


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    Homework Helper

    It sounds like they want you to take into account the torque on the cue ball due to the fact that it was hit off center. I guess you assume that the cue does not slip and that it hits parallel to the horizontal surface, but it doesn't actually say that, so I'm just guessing.
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