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!

Perfectly Elastic Collision and final velocity of ball

  1. May 3, 2016 #1
    1. The problem statement, all variables and given/known data
    Two balls collide in a perfectly elastic collision. Ball 1 has a mass of 3.5kg and is initially travelling at a velocity of 5.4m/s
    . It collides head-on with stationary ball 2 with mass 4.8kg. Determine the final velocity of ball 2.

    Given: m1=3.5kg


    2. Relevant equations
    See attached pictures

    3. The attempt at a solution
    See attached pictures IMG_6159.jpg IMG_6161.jpg . I don't know how to solve the problem beyond what I've already done. I'm stuck.​
  2. jcsd
  3. May 3, 2016 #2


    User Avatar
    Science Advisor
    Homework Helper
    2017 Award

    Can't read it. Momentum conservation and conservation of kinetic energy should be enough to work out this exercise. Postpone inserting numbers as long as reasonable, so you can check the relationships you get (dimension, limiting cases).
    Type it out if you want more guidance (at least, from folks like me, and also from folks who don't even try to read photographed solution attempts at all).
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted