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!

Elastic collisions between unequal masses. Is it enough to know 'λ,v and m1/m2' ?

  1. Jul 18, 2011 #1
    1. The problem statement, all variables and given/known data
    if m1 and m2 (m1= m2, (vm1 = 4m/s)) collide at an angle λ (60°) we can fully predict oucome:
    angles (60° and 30°) and speeds (2 and 3.46)

    can we predict the outcome if we know that m1/m2 = 3/ 5 ?
     
    Last edited: Jul 18, 2011
  2. jcsd
  3. Jul 18, 2011 #2
    we can break the motion into X-Y axis.
    for this let particle 1 is coming along +Y axis so particle 2 2ill be at 60 degree from it.
     
  4. Jul 18, 2011 #3
    If I got it right: it is possible.!

    (I know it makes things easier to consider m1 as moving on one axis.I prefer +X)

    I asked because in all sites they said
    'if you know what is v'1 or v'2 you can calc all other data'
    while I knew that it is very easy and simple and quick to get all data
    knowing only

    v(m1) = 4 m/s (along the X-axis)
    m1/ m2 = 3/5 ( m1), angle 60°

    Thank you sir!
     
    Last edited: Jul 19, 2011
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Elastic collisions between unequal masses. Is it enough to know 'λ,v and m1/m2' ?
Loading...