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!

Finding final velocity in a perfectly elastic collision

  1. Jan 25, 2009 #1
    [solved] finding final velocity in a perfectly elastic collision

    ~~~Two marbles with equal masses collide. Marble A has an initial velocity of 1.69 m/s while marble B is initially at rest. If marble A comes to rest as a result of the initial collision, what is the final velocity of marble B?

    * DO NOT include units in your answer.
    * Give your answer with two decimals.
    * Answers will be accepted if they are within 0.02 of the correct answer.

    ~Can anyone clarify this?
    1. m1v1i + m2v2i = m1v1f + m2v2f

    masses cancel....
    2. v1i+v2i = v1f+v2f

    3. (1.69m/s) + (0m/s) = (0m/s) + v2f

    4. 1.69 m/s= v2f

    I'm not sure this is correct...
     
    Last edited: Jan 25, 2009
  2. jcsd
  3. Jan 25, 2009 #2

    LowlyPion

    User Avatar
    Homework Helper

    Looks correct.
     
  4. Jan 25, 2009 #3
    thank you so much!!!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Finding final velocity in a perfectly elastic collision
Loading...