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Homework Help: Model Train Collision

  1. Jul 25, 2007 #1
    A model-train car of mass 230 g traveling with a speed of 0.50 m/s links up with another car of mass 430 g that is initially at rest. What is the speed of the cars immediately after they have linked together????
  2. jcsd
  3. Jul 25, 2007 #2
    i have been working online for it but it is coming out wrong, i get .17
  4. Jul 25, 2007 #3


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    maybe you forgot your units?
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