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Homework Help: Center of mass of two particle system (q45)

  1. Nov 7, 2007 #1
    Hi, I do not know how to get started for the following question,
    http://tinyurl.com/yueh5m
    can somebody help?
     
  2. jcsd
  3. Nov 7, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Start with the mathematical definition of center of mass. Then take a derivative to find the velocity of the center of mass. And another derivative to find its acceleration. Once you see how the acceleration of the center of mass relates to the accelerations of the individual masses, then you can solve this problem.
     
  4. Nov 7, 2007 #3
    Thanks, using the formula Ma_cm = summation of individual ma, has helped me successfully solved the problem. it is c.
     
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