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: Showing work (Perfectly Elastic Collision)

  1. Oct 6, 2009 #1
    1. The problem statement, all variables and given/known data

    Two pool balls hit head on. V(1) = 2.0 m/s west, V(2) = 5 m/s east. Mass is the same for each ball.

    2. Relevant equations


    3. The attempt at a solution

    m(1)*(-2m/s)^2 + m(2)*(5m/s)^2 =??? no idea...I just know that each ball should be going the same speed and direction as the other.

    I'm totally confused as to how I show work.

    Thank you for reading the probably & attempting to help even if you're not able to. I'm open eyes & ears to everyone.
  2. jcsd
  3. Oct 6, 2009 #2


    User Avatar
    Homework Helper

    Hi madmax2006, welcome to PF.
    You have not written the problem completely. what is required in the problem?
  4. Oct 6, 2009 #3
    Got it, thanks anyways! :)
    Last edited: Oct 6, 2009
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook