1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Coefficient of Friction [Needing Help!]

  1. Sep 28, 2009 #1
    1. The problem statement, all variables and given/known data
    If the kinetic coefficient of friction between ice skates and ice is 0.01, what is the average forward force necessary for a 500 Nt skater to maintain a constant forward velocity?


    2. Relevant equations
    f = (Uk)(N)


    3. The attempt at a solution

    f = (Uk) (N)
    f = (0.01) (500 Nt)
    f = 5 Nt

    Is this right? Just seems too simple. Can someone explain and walk me through this problem if I'm wrong.

    Also I realized from a diagram I did in my head Fapp - f = 0
    Fapp = f
    Fapp = (Uk) (N).....right???
     
  2. jcsd
  3. Sep 28, 2009 #2

    Delphi51

    User Avatar
    Homework Helper

    Your calculation to get 5 N looks correct to me!
     
  4. Sep 29, 2009 #3
    Alright thanks a bunch.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook