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: Equation, algebra manipulation that I dont get? help!

  1. Dec 19, 2012 #1
    how does

    1/2kx2 = 1/2mv2 + 1/2kx2

    become

    x = (m/k)v2 + x2 ??
     
  2. jcsd
  3. Dec 19, 2012 #2
    It doesn't. It becomes sqrt((m/k)v2 + x2)
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook