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!

Collision of Atoms

  1. Nov 1, 2013 #1
    An atom of mass m1 = m moving in the x direction with speed v1 = v collides elastically with an atom of mass m2 = 5m at rest. After the collision the first atom moves in the y direction. Find the direction of motion of the second atom. ________ ° counterclockwise from the +x-axis

    Find the speeds of both atoms (in terms of v) after the collision.
    v'1 = ________ v
    v'2 = ________ v

    3. The attempt at a solution
    (a) arctan(5) = 78.7/2 = -39.4° counterclockwise from the +x-axis
    (b) tan(39.4) = .821 v = v'2

    I don't know what formulas/equations to use here and am unsure on how to get v'2. I have worked out the correct answers for (a) and the first part of (b).
     
  2. jcsd
  3. Nov 1, 2013 #2
    How about using the conservation of momentum to work it out? Split the momentum into individual components, in the x and y directions, and work from there. It also may help you visualize the situation if you draw the scenario out, both initial conditions, and final conditions.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Collision of Atoms
  1. Collision in the atom (Replies: 11)

  2. Photon atom collision (Replies: 5)

Loading...