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A boy on a bicycle rides in a circle of radius ro at speed vo. If the boy now rides at a radius ...

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A boy on a bicycle rides in a circle of radius ro at speed vo. If the boy now rides at a radius ...

A boy on a bicycle rides in a circle of radius r_o at speed v_o. If the boy now rides at a radius equal to half the initial radius r_o, by what approximate factor must he change his speed in order to have the same radial acceleration?

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0.25

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0.71

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1.4

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0.5

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College Physics

Edition: 5^th

Author: Giambattista

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