[填空题]
A device for training astronauts ot uf,z 8k n,yu2gl6w.and jet fi3 /gg/q- twk;+nl a/;r svjsmi9w xz*yghter pilots is designed to rotate a trainee in a horizontal circle ofjqlmsw;;w/tr n +a g- xy9/s*3 zg/ikv radius 12.0 m . If the force felt by the trainee on her back is 7.85 times her own weight, how fast is she rotating? rev/s m/s
Express your answer in both $ \mathrm{m} / \mathrm{s}$ and $\mathrm{rev} / \mathrm{s}$ .
