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: Understanding momentum help

  1. Oct 22, 2006 #1
    A 75kg javelin thrower applies a 300 N force to a 2.0kg javelin for 1.5 seconds.

    a)what is the increase in momentum of the javelin?

    b)what is the speed of the javelin immediately after the throw?

    all i know is that ft = /\(mv) /\ is suppose to be a triangle.
     
  2. jcsd
  3. Oct 22, 2006 #2

    radou

    User Avatar
    Homework Helper

    Look up the relation between change in momentum and impulse.
     
  4. Oct 22, 2006 #3

    Office_Shredder

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Hint: the initial momentum is zero
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook