- #1

Nabeshin

Science Advisor

- 2,207

- 16

I know [tex]F_g=\frac{Gm_1m_2}{r^2}[/tex], so the force of gravity varies with respect to position. And, of course, the position is a function of time. So I find a strange recursion here, and I know that I am thinking about this problem in the wrong way.

Perhaps I need to think more in terms of momentum or energy?