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A spacecraft of mass 500kg lands on the moon. Calculate the moon's gravitational pull on it given that mass of the moon is 7.5 x 10^22kg and radius of the moon is 1.6 x 10^6m.

  • Science -

    The value of "g' " on the moon is
    G*M/R^2, where
    G is the universal gravity constant.
    (Look it up if you don't know it)
    M is the moon's mass
    R is the moon's radius.

    You should get a value of about
    g' = 1.63 m/s^2, about 1/6 of the value at the surface of the Earth.

    For the Moon's pull on a 500 kg mass (in Newtons), multiply 500 by g'.

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