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: Hard physics quesiton

  1. Jan 9, 2014 #1
    1. The problem statement, all variables and given/known data
    A small explosive charge is placed in a rubber block resting on a smoother surface(frictionless). when the charge is detonated, the block
    breaks into three pieces. A 200g piece travels 1.4 m/s and 300g piece travels at 0.90m/s. The third piece flies off at a speed of 1.8m/s.
    If the angle between the first two pieces is 80(degrees), calculate the mass and the direction of the third piece. two sig figs.
    2. Relevant equations

    3. The attempt at a solution
    honestly no idea. Help would be wonderfull
  2. jcsd
  3. Jan 9, 2014 #2
    First start is the body diagram. Indicate what you know from the problem.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted