1. Not finding help here? Sign up for a free 30min 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!

Friction force physics problem

  1. Oct 13, 2004 #1
    a stockroom worker pushes a box with mass 11.2kg on a horizontal surface with a constant speed of 3.50m\s^2 The coeficient of friction is (for surface of the ground and box) .20 A...what horizontal force must the worker apply to maintian the motion.. i got [tex]F_x=21.9N[/tex] which is correct and then it asks me "it the force calculated in part a) is removed, how far does the box slide before coming to rest?" Where do i start..all I have is velocity?
  2. jcsd
  3. Oct 13, 2004 #2
    Once the applied force is removed,
    what is the net force?
    isn't net force = ma?
    does that mean we have deceleration?
    oh do we know initial velocity?
    and what abt final velocity?
    can i get the time?
    hmm but s = ut + 1/2at^2 ?
    ah yes!

    -- AI
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Friction force physics problem