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

Figure out horizontal force necessary to move an object

  1. Sep 24, 2005 #1
    how do you figure out horizontal force necessary to move an object if the coefficient of kinetic friction is zero?
  2. jcsd
  3. Sep 24, 2005 #2
    It must be just big enough to over come the maxium static friction, then it will drop to the kinetic friction value of zero. But if kinetic friction is zero, it would probably be true that static friction is zero as well. But if you are moving, and you have zero kinetic friction, it takes zero force to keep it moving. You just need to give it an impulse to get it moving in the first place.
  4. Sep 24, 2005 #3
    thx that helped...i actually figured it out on my own...
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook