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

Steel on steel or steel on glass?

  1. Oct 11, 2004 #1
    which collision of marbles is more elastic, steel on steel or steel on glass?
  2. jcsd
  3. Oct 12, 2004 #2


    User Avatar
    Science Advisor

    That looks an awful lot like a homework problem where you were expected to just look up the answer!

    Do understand what "elastic" means?
  4. Oct 12, 2004 #3
    I don't know what elastic means?
  5. Oct 12, 2004 #4
    A substance is said to be completley elastic, if it can retain it's original size and shape after being deformed. Everything we observe in nature are not completely elastic. In the present context, a completely elastic colission refers to a one in which the sum of the kintetic energies of the colliding objects remains the same before and after the collission
  6. Oct 13, 2004 #5
    so then steel on steel is more elastic because it can retain it's original size and shape after being deformed and steel on glass won't because the glass will break. Am I right?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook