1. The problem statement, all variables and given/known data How deep would a mine shaft have to be for the gravitational acceleration at the bottom to be reduced by a factor of 5 from its value on the Earth's surface? 2. Relevant equations g=r(GME/RE3) G = 6.67 * 10-11 ME = 5.97 * 1024 kg RE = 6.38 * 106 m 3. The attempt at a solution I set g/5 equal to the equation g=r(GME/RE3). I got it wrong. I also tried dividing the result by 5, and it still didn't work. What else am I supposed to do?