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Gravity and Mass

  1. Nov 11, 2013 #1
    1. The problem statement, all variables and given/known data

    A 3.0 kg spherical flask is placed on a scale and balanced. Then a ball with a mass of 5775 kg is placed directly underneath the flask, resulting in a center-to-center distance of 56.9 cm. How much mass would have to be added to the other side of the scale in order to re-balance it?

    G = 6.67 x 10^-11 Nm^2/kg^2

    2. Relevant equations

    (G*m1*m2)/r^2 = mg

    3. The attempt at a solution



    m=0.000000364 kg
  2. jcsd
  3. Nov 11, 2013 #2
    Do you have a question?
  4. Nov 11, 2013 #3
    Did I setup the equation right?
  5. Nov 11, 2013 #4
    It looks OK to me.
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