[填空题]
A device for training astronauts and jet fighter pilots is des3 m ryigv-s.d:i 0 7z.ivz4hkttbt4+yign z8b 397xxvsmfed to rotate a trainee in a horizontal circle of radius 12.0 m . If the force felt by the trainee on her 8x b9xvf3 zsm7back 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 $\mathrm{rev} / \mathrm{s}$ .
