B C A 2. A circus performer drives a motorcycle with constant speed v around the inside of a vertical hoop of radius r. The combined mass of the rider and the motorcycle is m. (a) What is the centripetal acceleration of the motorcycle at each of the three points A, B, C? (b) What is the normal force exerted on the motorcycle by the track at each of the three points A, B, C?

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A: The values are approx.

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