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!

Speed of objects

  1. Dec 20, 2009 #1
    1. The problem statement, all variables and given/known data

    A bomb that is originally at rest blows apart into three pieces of equal mass. Two of the
    pieces have velocities (12i + 24j) m/s and (30i - 24j) m/s. What is the speed of the third
    piece?

    2. Relevant equations

    m1v1 + m2v2 + m3v3 = 3mv4 (assuming m is the same)


    3. The attempt at a solution

    Not really sure where to begin. I can find the speed of the 2 objects by finding the k direction, but thats it.
     
  2. jcsd
  3. Dec 20, 2009 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Hint: What's the total momentum of all three pieces?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Speed of objects
  1. Objects Speed (Replies: 5)

Loading...