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Homework Help: Momentum and impulse

  1. Oct 31, 2006 #1
    if an impulse of 25 N~s results, how would one describe the change in momentum?

    how is that number related or indicative of the change in momentum?

    i could be way off. that's likely. thanks.
     
  2. jcsd
  3. Oct 31, 2006 #2
    Impulse is change in momentum.
     
  4. Oct 31, 2006 #3
    momentum-impulse theorem says:
    delta p = impulse;
    if impulse is 25 it means that there is a change in momentum, i.e. momentum is not conserved...final momentum is greater than initial...that's all I know...I hope it helped.
     
  5. Oct 31, 2006 #4
    so if it asks what change in momentum does the cart undergo, i write 25 N~s? i thought momentum was measured in kg~m/s.
     
  6. Oct 31, 2006 #5
    [tex]Ft=m\Delta v[/tex]

    What is on the left? What is on the right?
     
  7. Oct 31, 2006 #6
    If you calculate what a Newton is in primary units, you'll see that [itex]Ns=kg\,m/s[/itex]
     
  8. Oct 31, 2006 #7
    What is on the left? What is on the right?[/QUOTE]

    is that question for me?

    Ft is impulse and mv is momentum, and impulse = change in momentum, or maybe it wasn't a question for me???:confused:
     
  9. Oct 31, 2006 #8
    Sorry, I mixed you up with the OP.
     
  10. Oct 31, 2006 #9
     
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