science help!

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A satellite is placed in orbit 100 km above the surface of the earth (radius = 6370 km, mass = 5.98 x 1024 kg).

If the satellite has a mass of 1500 kg, what is the force of gravity acting on it?

  • science help! -

    Now I did g relative to g earth for someone a few minutes ago
    http://www.jiskha.com/display.cgi?id=1389396878

    so g out there = 9.81*6370^2/6470^2)
    = 9.51 m/s^2
    so
    Fg = 1500 * 9.51
    Fg = 14364 Newtons

    now before you ask
    F = m a
    F/m = a = 9.51 = v^2/r
    so v^2 = 9.51 r

    =

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