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, Spring Constant, Energy

  1. Feb 26, 2007 #1
    1. The problem statement, all variables and given/known data
    http://img339.imageshack.us/img339/4518/phys2lh6.gif [Broken]

    2. Relevant equations
    W= -um2gh
    Final Eq?:

    3. The attempt at a solution
    .2(4)9.8*(2*9.8(7+.2(4))/9 = 133.1754667
    I dont know if I went wrong in manipulating the equation but I suspect thats the issue?
    Last edited by a moderator: Apr 22, 2017 at 4:01 PM
  2. jcsd
  3. Feb 26, 2007 #2
    Sorry to bother you guys again but if I could please get some help tonight it would be much appreciated it must be turned in early tomorrow.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Friction, Spring Constant, Energy