Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

M i right

  1. May 16, 2009 #1
    is this the wriye formula of cofficient of friction

    22/7 x D x n/12
  2. jcsd
  3. May 16, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi -=Mad=-! Welcome to PF! :smile:
    Noooo … that's the formula for the distance in feet that a cylinder of diameter D inches rolls after n turns. :wink:

    Does that help? o:)
  4. May 16, 2009 #3


    User Avatar
    Science Advisor

    Whether that is a formula for friction or the distance a cylinder rolls (assuming that 22/7 is an approximation for [itex]\pi[/itex]) or the curvature of a hypersurface depends entirely upon the application- which you did not tell us!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook