An astronaut standing on the surface of the moon experiences a gravitational force of attraction of 160 N. He then moves away from the surface of the moon to an altitude where gravitational force is 40 N.(adsbygoogle = window.adsbygoogle || []).push({});

a) How far away from the centre of the moon is this new location in terms of the radius of the moon?

I know that Fg is proportional to 1/r^2

I dont know how to figure it out, can anyone point me in the right direction?

Thanks.

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# Homework Help: Gravitational Fields

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