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Hey everyone, this is question number 69 from chapter 5.
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This problem says a horizontal is about a training program for pilots, and it spins the pilots around a horizontal circle of radius 11 meters.
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If the force felt by the trainee is 7 .5 times her own weight, how fast is she revolving? express your answer in both meters per second and revolutions per second.
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Okay, so we have an equation for centripetal force, that is what it is because it's circular motion.
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And that is equal to f equals m v squared over r.
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And we're told that 7 .5, 7 .45 times her weight.
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So this force is going to be equal to 7 .5 mg, 7 .45mg.
00:53
And from here we can solve for v.
00:56
It's a pretty simple problem.
00:57
There's m on both sides, so that will cancel...