In 1980, over San Francisco Bay, a large yo-yo was released from a crane. The 116 kg yo-yo consisted of two uniform disks of radius 32 cm connected by an axle of radius 3.2 cm. What was the magnitude of the acceleration of the yo-yo during?
(a) Its fall and
(b) Its rise?
(c) What was the tension in the cord on which it rolled?
(d) Was that tension near the cord's limit of 52 KN? Suppose you build a scaled-up version of the yo-yo (same shape and materials but larger).
(e) Will the magnitude of your yo-yo's acceleration as it falls be greater than, less than, or the same as that of the San Francisco yo-yo?
(f) How about the tension in the cord?
This question was answered on: Jul 11, 2017
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