1. The problem statement, all variables and given/known data At what distance from the earth should an astronaut be placed so that he will feel no net force when the Earth and the Moon and he are aligned? 2. Relevant equations Fnet=ma F=(Gm1m2)/d^2 3. The attempt at a solution I assume I'm gonna do a force annalysis, I'm just not sure how to. Also I thought that maybe if the pull from the moon to the astronaut and the pull from the earth to the astronaut were equal, he should feel no force.