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: Collision problem help needed

  1. Mar 19, 2007 #1
    Hi I wonder if anyone can help, im stuck on this question.

    1.Two smooth spheres A and B, of masses of 300g and 700g respectively, are travelling towards each other along the same horizontal line with speeds of 8m/s and 4m/s respectively. After the collision, the direction of motion B has been reversed and its travelling at a speed of 2m/s

    a)The final speed of A after the collision
    bThe total loss in kinetic energy due to the collision.

    Any help would be greatly appreciated.
  2. jcsd
  3. Mar 19, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

    What's conserved during the collision?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook