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: Kinetic Energy question

  1. Feb 12, 2010 #1
    1. The problem statement, all variables and given/known data

    Explain how a golf ball and a football can have the same kinetic energy even if their masses are different.



    2. Relevant equations

    None.


    3. The attempt at a solution

    A golf ball and a football can have the same kinetic energy even if their masses are different because kinetic energy is a quadratic function of speed.

    This is a new topic and I missed a class or two on it so it may be a super easy question but I just wanted to see what you guys and gals think! Thanks!
     
  2. jcsd
  3. Feb 12, 2010 #2

    rock.freak667

    User Avatar
    Homework Helper


    Well in essence yes, since Ek=1/2mv2, they can have the same Ek if they move with different speeds.
     
  4. Feb 12, 2010 #3
    Thanks for the help!
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook