1. Not finding help here? Sign up for a free 30min 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!

HELP Impulse problem

  1. Nov 11, 2008 #1
    HELP!!!Impulse problem

    1. The problem statement, all variables and given/known data
    A bullet of mass m and speed v passes through a pendulum bob of large mass M and emerges with speed v/2. the bob is at the end of a sting of length l.What impulse is delivered to the bob by the bullet in this case.

    3. The attempt at a solution
    impulse=momentum change=P_f-P_i

    However, I don't think it is the final answer for this question, but I don't really know how to continue... can anyone help me with this question? thank you very much.
  2. jcsd
  3. Nov 11, 2008 #2


    User Avatar
    Gold Member

    Re: HELP!!!Impulse problem

    I see nothing is wrong. The bullet comes in with v while the bob has v=0 then the bullet exits with v/2 and then the bob has a velocity of v' (or some velocity v)
  4. Nov 12, 2008 #3
    Re: HELP!!!Impulse problem

    thank you very much. I am just making sure.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: HELP Impulse problem