Originally Posted by **jello17** How high does a rocket have to go above Earth's surface until its weight is one eighth what it would be on Earth?
help!! |

$\displaystyle W = \frac{GM_e m}{R_e^2}$

$\displaystyle \frac{W}{8} = \frac{GM_e m}{8R_e^2} = \frac{GM_e m}{(\sqrt{8} \cdot R_e)^2}$