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: Momentum & Collision Problem

  1. Oct 22, 2012 #1
    1. The problem statement, all variables and given/known data
    Consider a head-on collision between two people. The damage done to each person is far greater if the people rebound upon impact versus sticking together upon impact. Why? Discuss in terms of impulse/change in momentum.


    2. Relevant equations
    Momentum = (mass x Volume of 1st person)(Massx Volume of second person)


    3. The attempt at a solution

    I'm pretty lost.
     
  2. jcsd
  3. Oct 22, 2012 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper

    You have been doing work on collisions in class.
    What conservation law do you normally use?
     
  4. Oct 23, 2012 #3
    That Momentum is always conserved
     
  5. Oct 23, 2012 #4
    If they rebound then they will encounter a second collision with the floor.
     
  6. Oct 25, 2012 #5

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper

    Fine - so how would you normally use this law?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook