When a satellite is a distance R from the center of Earth, the force due to gravity on the satellite is F. What is the force due to gravity on the satellite when its distance from the center of Earth is 3R?

(1) F/9 (3) F

(2) F/3 (4) 9F

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- January 22nd 2007, 03:58 PMsymmetryGravity
When a satellite is a distance R from the center of Earth, the force due to gravity on the satellite is F. What is the force due to gravity on the satellite when its distance from the center of Earth is 3R?

(1) F/9 (3) F

(2) F/3 (4) 9F - January 22nd 2007, 09:07 PMCaptainBlack
- January 23rd 2007, 02:26 AMsymmetryok
Thanks! I did not know that formula.

- January 23rd 2007, 02:47 AMCaptainBlack