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A boy on a bicycle pedals around a circle of 22 m radius at a speed of 10m/s. The combined mass of the boy and the bicycle combined mass of the boy and the bicycle is 80 kg. (a) What is the centripetal force exerted by the pavement on the bicycle? (b) What is the upward force exerted by the pavement on the bicycle? See fig.

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The correct Answer is:
(a) 364N; (b) 784N
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