Determind the minimum diameter of a space station that would simulate an artificial G of 10 m/s^2 at a rotation rate of 1 rpm. I was not given an equation, it was one of them 'try to figure it out yourself equations' but I think it is: r=9.81g?(pie * rpm/30)^2 at least that is the equation I got from wiki... My attempt at a solution: r=9.81(10 m/s^2)/ (pie *1rpm/30)^2 r =981/.0109 r =90,000 then I doubled the ratius to get the diameter: d=180,000 that seems pretty large. i don't know what im doing wrong. if you could help that would be great. thanks.