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!

Coefficient of Restitution?

  1. Nov 12, 2003 #1
    Whats the equation for the coefficient of restitution again? Went blank!
  2. jcsd
  3. Nov 12, 2003 #2
    Code (Text):

    Coefficient of Restitution = Speed of Separation = v[sub]1[/sub]-v[sub]2[/sub]
                                 -------------------   -----
                                  Speed of Approach    u[sub]1[/sub]-u[sub]2[/sub]

  4. Nov 12, 2003 #3

    Doc Al

    User Avatar

    Staff: Mentor

    For the simple case of something bouncing off the floor (or any immoveable object) the coefficient of restitution is:

    c = vf/v0
    where v0 is the speed of the object before the collision, and vf is the speed after the collision.

    For perfectly elastic collisions, c = 1.
  5. Nov 12, 2003 #4
    It's like waiting for a bus, you have to wait for ages and then two come along at once.
  6. Nov 12, 2003 #5
    v1-v2/u1-u2, thats the one, thats guys!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook