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Rotation speed of device used for training astronauts and jet fighter pilots.

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A device for training astronauts and jet fighter pilots is designed to rotate the trainee in a horizontal circle of radius 11.0 m. If the force felt by the trainee is 7.91 times her own weight, how fast is she rotating, in revolutions per second?

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The rotation speed devices used for training astronauts and jet fighter pilots are given. In two solutions for interpretation of the problem, the calculations and explanations are clearly shown.

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NOTE: FIRST I've ASSUMED HERE THAT 7.91 times IS THE HORIZONTAL FORCE YOU ARE TALKING ABOUT (i.e. CENTRIFUGAL FORCE).
Here the force that trainee will experience will be centrifugal force acting radially outward and this is a type of pseudo force, because the body (i.e. jet fighter is revolving in a circle and ...

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• BEng, Allahabad University, India
• MSc , Pune University, India
• PhD (IP), Pune University, India
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