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

Homework Help: Approximate K and 'u' values| HELP

  1. Jan 2, 2005 #1
    Coefficient of Friction and Spring constant

    What would the approximate value of (kinetic, and if possible, static) friction be for a block of wood of this nature:
    \\Attachment 1 and 2

    And how about the 'k' value for these springs? How would i go about calculating this sort of problem when the two springs are attached to a board which is the place of impact? Would i double the value of k?

    \\Attachment 3
     

    Attached Files:

    Last edited by a moderator: Jan 2, 2005
  2. jcsd
  3. Jan 2, 2005 #2
    Awaiting for the image to be approved Dekoi. "Dekoi" is of French origin I pressumed.
     
  4. Jan 2, 2005 #3
    Does a value of 0.6 sound correct for the coefficient of friction between a steel ball and a wooden-ramp shown above?
     
    Last edited by a moderator: Jan 2, 2005
  5. Jan 2, 2005 #4
    bump_-----------------
     
  6. Jan 2, 2005 #5

    Q_Goest

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    2 springs in parallel: add the k values to find the total k value.

    Not sure what you're doing here. Do you need equations to determine spring constant from spring dimensions?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook