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

B Stick-Slip with Chalk

  1. May 21, 2016 #1
    What is the physics behind drawing dotted lines with chalk with just one stroke?
    This is a video demonstrating this:

    Here is what I currently have:
    as soon as the applied force exceeds that of the frictional, the block will accelerate. What makes it slip though? Because there is a jerk (change in acceleration) due to the difference between static and kinetic frictional forces?
  2. jcsd
  3. May 21, 2016 #2

    Andy Resnick

    User Avatar
    Science Advisor
    Education Advisor
    2016 Award

    I don't think it's stick-slip behavior, it seems to be more complicated (a "frictional impact oscillator"):

  4. Jun 1, 2016 #3
    can't do that on a dry erase board....just sayin'
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Stick-Slip with Chalk
  1. Water sticks. (Replies: 3)

  2. Rolling & slipping (Replies: 4)

  3. Stick and waves (Replies: 2)

  4. A stick in space (Replies: 1)