problem05_p111

University Physics with Modern Physics with Mastering Physics (11th Edition)

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5.111: a) b) The upward friction force must be equal to the weight, so mg T R π m n = ) 4 ( 2 2 s s μ μ and . 28 . 0 m) 5 . 2 ( rev) 0.60 1s ( ) s m 80 . 9 ( 4 2 2 2 2 2 s = = R π gT μ c) No; both the weight and the required normal force are proportional to the rider’s
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