1. Limited time only! Sign up for a free 30min personal 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!

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
  6. Jan 2, 2005 #5


    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