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Homework Help: Fiding the coefficent of friction for work done.

  1. Oct 29, 2008 #1
    For some reason despite what attempts i have made my answers are defiantly not coming out right so any help on even proper setup would be appreciated.

    1. The problem statement, all variables and given/known data
    You have done 2.2kJ of work
    to push a 78-kg trunk
    3.1 m along a slop inclined upward at 22degrees

    What is the coefficient of friction between the trunk and the slope
  2. jcsd
  3. Oct 29, 2008 #2
    What do you know about the work done's relation with the distance it's moved?

    What can you get out of re-arranging the work formula?
  4. Oct 29, 2008 #3
    Ok i managed to work it out, just took me longer than I liked.

    Thank you.
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