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Find the ozone’s velocity.

  1. Mar 29, 2013 #1
    1. The problem statement, all variables and given/known data

    A 32-u oxygen molecule (O2) moving in the +x-direction at 580 m/s collides with an oxygen atom (mass 16 u) moving at 870 m/s at 27° to the x-axis. The particles stick together to form an ozone molecule. Find the ozone’s velocity.

    2. Relevant equations

    3. The attempt at a solution

    m1 = 32 u,
    v1 = 580i m/s,
    m2 = 16 u,

    v2 =870(cos(27) i + sin(27) j) m/s

    m1 v1 + m2 v2 =(m1 + m2)V

    V = (m1 v1+ m2 v2)/(m1+ m2) = (645 i) m/s

    Answer = 645 i m/s

    Does that look right?
  2. jcsd
  3. Mar 29, 2013 #2


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    Homework Helper

    Conservation of momentum must hold for all components. You calculated the x component of velocity of the ozone molecule. Do you think it has zero y component of velocity?

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