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: What is the magnitude of the impulse

  1. Apr 7, 2014 #1
    1. The problem statement, all variables and given/known data
    a ball having a mass of 150 g strikes a wall with a speed of 5.2 m/s and rebounds with only 50% of its initial kinetic energy. what is the magnitude of the impulse on the wall from the ball?

    2. Relevant equations
    KE= 1/2 m v^2

    3. The attempt at a solution
    the answer is 1.3 N s but i dont know how to get there.
  2. jcsd
  3. Apr 7, 2014 #2
    What was its kinetic energy before hitting the wall? What was its kinetic energy after rebounding?

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted