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Homework Help: Basic Wave Question Help

  1. Apr 15, 2013 #1
    1. The problem statement, all variables and given/known data

    An 11.5kg mass is traveling to the right with a speed of 2.4m/s on a smooth horizontal surface when it collides with and sticks to a second 11.5 kg mass that is initially at rest but is attached to a light spring with force constant 110N/m.

    2. Relevant equations


    3. The attempt at a solution

    I tried to use the equation A=V*sqrt(m/k). I plugged in 2.4 m/s in for v, k is the force constant, 110N/m, and I used 23 kg for the mass (the two masses added together). Solving for this, I get 1.097m. However, this is incorrect.
    Any ideas where I went wrong?

    Also, in case it is necessary, I have already solved for the frequency: f=0.348 Hz.
    Last edited: Apr 15, 2013
  2. jcsd
  3. Apr 15, 2013 #2
    what exactly are we looking for? I don't see the original question.
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