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Posted by on Tuesday, November 3, 2009 at 9:10pm.

Four 7.5 kg spheres are located at the corners of a square of side 0.74 m. Calculate the magnitude and direction of the gravitational force on one sphere due to the other three.

  • Physics - , Tuesday, November 3, 2009 at 9:18pm

    Use symettry. YOu know the force will be diagonal.
    the side components will be
    2G*m^2/.74^2 Cos45
    and the diagonal will be
    G*m^2/(.74*1.414)^2

    add

  • Physics - , Tuesday, November 3, 2009 at 9:37pm

    i got 1.71E-8 and that was wrong and then i got 1.03E-8 and it was still wrong

  • Physics - , Monday, November 30, 2015 at 4:14pm

    with sig figs the answer should be
    2.0*10^-8 N towards the center of the circle

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