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6 May, 01:25

Two men each have a mass of 90 kg. If the gravitational force between them is 8.64 10-8 N, how far apart are they? G = 6.67 * 10-11 N⋅ (m/kg) 2

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  1. 6 May, 01:46
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    Applicable formular:

    F = Gm1m2/d^2, where F = gravitational force, m1 & m2 = mass of the two bodies, G = Gravitational constant, d = distance between the bodies.

    Substituting;

    8.64*10^-8 = (6.67*10^-11*90*90) / d^2

    d^2 = (6.67*10^-11*90^2) / (8.64*10^-8)

    d = Sqrt [ (6.67*10^-11*90^2) / (8.64*10^-8) ] = 2.5 m

    The two men are 2.5 m apart.
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