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Newton's Law & Gravitational F: Finding the Accl'n for a sphere

  1. Mar 11, 2008 #1
    1. The problem statement, all variables and given/known data
    Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.20m. Two of the spheres have a mass of 2.8 kg, each.

    The third sphere has an unknown mass, and is released from rest.

    Considering only the gravitational forces that the spheres exert on each other, find magnitude of the initial acceleration of the third sphere.


    2. Relevant equations




    3. The attempt at a solution

    I'm not sure how to attempt this question, where do I start> thanks!
     

    Attached Files:

  2. jcsd
  3. Mar 11, 2008 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Start with Newton's law of universal gravity.
     
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