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2 dimensional collision with momentum

  1. Apr 6, 2013 #1
    1. The problem statement, all variables and given/known data

    There are 2 pucks with different masses. Puck 2 is initially at rest, and Puck 1 is moving horizontally in the positive x direction. The collision has sent the pucks off at angles θ1 and θ2 measured relative to the x-axis, along which Puck 1 initially traveled. Assume momentum is conserved for this collision and
    write the conservation of momentum expression for each of the two dimensions.

    2. Relevant equations



    3. The attempt at a solution

    I list out my variables.

    mass
    m1, m2

    velocities
    vix1
    viy1=0

    vfx1=vf1*cos(θ1)
    vfy1=vf1*sin(θ1)

    vix2=0
    viy2=0

    vfx2=vf2*cos(θ2)
    vfy2=vf2*sin(θ2)

    Here i set up the problem.

    Pfsysx=Pisysx
    m1(vf1*cos(θ1)) +m2(vf2*cos(θ2)) = m1(vix1)

    Pfsysy=Pisysy
    m1(vf1*sin(θ1)) +m2(vf2*sin(θ2)) = 0

    does this seem right? can i go any further?
     
  2. jcsd
  3. Apr 6, 2013 #2
    Looks good
     
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