1. Mar 11, 2010 #1

   StevieRayT

   

   Determine the coefficient of friction between a 22kg chair and the floor if it requires 15J to push it 1.8m (We're doing a Kinetic and Potential energy unit)
   
   Answer for mu is .04, but can you help me in getting there, we have a test tomorrow!
   
   
   Thanks in advance!

    

   StevieRayT, Mar 11, 2010
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3. Mar 11, 2010 #2

   zeromodz

   

   This is not were you post homework questions. To answer your problem though.
   
   F = ukN
   uk = F / MG
   W = D * F
   F = W / D
   uk = W / MGD
   uk = (15) / (22)(9.8)(1.8)
   uk = 0.46

    

   zeromodz, Mar 11, 2010

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