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chantelkohl
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Homework Statement
Somewhere between the Earth and the moon is a point where the gravitational attraction of the Earth is canceled by the gravitational pull of the moon. The mass of the moon is 1/81 that of the earth. How far away from the center of the Earth is this point?
a) 8/9 the way to the moon
b) 9/10 the way to the moon
c) 3/4 the way to the moon
d) 80/81 the way to the moon
Homework Equations
F=GMm/r^2
The Attempt at a Solution
GM/r^2=G(1/81)M/r^2-d