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5.109:
a) For the same rotation rate, the magnitude of the radial acceleration is
proportional to the radius, and for twins of the same mass, the needed force is
proportional to the radius; Jackie is twice as far away from the center, and so must hold

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**Unformatted text preview: **on with twice as much force as Jena, or 120 N. b) . 2 Jackie r mv F = ∑ s. m 8 . 3 kg 30 m) (3.6 N) 120 ( = = v...

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