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Physics

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A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +18.5 rad/s. Then, the brakes are applied. In coming to rest, each wheel makes an angular displacement of +14.5 revolutions.
(a) How much time does it take for the bike to come to rest?
1 s

(b) What is the angular acceleration of each wheel?
2 rad/s2

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