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!

Homework Help: Inelastic collisions

  1. Feb 19, 2006 #1
    i need a help on this problem

    a 20g rifle bullet traveling 250m/s buries itself in a 3.8kg pendulum hanging on a 2.3m-long string. how far does th ependulum swing horizontally?

    Physics 3rd edition Douglas C. Giancoli
  2. jcsd
  3. Feb 19, 2006 #2
    also this formuls might be handy


  4. Feb 19, 2006 #3
    The conservation of momentum


    The conservation of energy


    The horizontal displacement

    [tex]\Delta x=l\sin\theta[/tex]

    Solving the equation will give you the answer
  5. Feb 19, 2006 #4
    thanks i got it
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook