Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

B Momentum conservation

  1. Jun 17, 2016 #1
    What is the momentum of a ball at the exact point where it comes into contact with a wall?
     
  2. jcsd
  3. Jun 17, 2016 #2

    FactChecker

    User Avatar
    Science Advisor
    Gold Member

    Assume that the ball is so uniform that there is an instant of time when all particles of the ball have come to a zero velocity, fully compressed, and about to rebound. At that instant the momentum is 0. (I am ignoring the velocity that the ball imparts to the wall. Otherwise, there is some tiny momentum at the time of full compression and particles of the ball will not have 0 velocity till a small amount of rebound has begun.)
     
  4. Jun 17, 2016 #3
    Thank you!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Momentum conservation
  1. Momentum conservation? (Replies: 5)

  2. Conservation of momentum (Replies: 107)

  3. Momentum conservation? (Replies: 7)

Loading...