In 1980 over san francisco bay a large yo-yo was released, Ask an Expert

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In 1980, over San Francisco Bay, a large yo-yo was released from a crane. Suppose the yo-yo was 100 kg, and it consisted of two uniform disks of radius 32.4 cm connected by an axle of radius 4.65 cm. What was the magnitude of the acceleration of the yo-yo during

(a) its fall and

(b) its rise?

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