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Homework Help: Force, constant speed, friction, acceleration

  1. Oct 18, 2007 #1
    I would really appreciate any help on this. I'm confused with this.

    1. The problem statement, all variables and given/known data
    An empty crate is sliding witha speed of 7m/s over a frictionless surface when it hits a rough patch where .25 is the coefficient of kinetic friction. Find the distance it takes to stop the box.

    3. The attempt at a solution
    Should I calculate acceleration first and if so how do I do the rest of the problem?
  2. jcsd
  3. Oct 18, 2007 #2


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    Staff Emeritus
    Science Advisor

    Hint: Try using energy methods.
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