Principles of Physics 11th ISV Edition · Rolling, Torque, and Angular Momentum · Problem 18
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Walker, Halliday & Resnick — Rolling, Torque, and Angular Momentum: Problem 18
18 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?
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주어진 조건: 18 In, , a, 116 kg, 32 cm, 3.2 cm, 52 kN
구하는 것: (a) its fall and; (b) its rise?; (c) What was the tension in the cord on which it rolled?
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Principles of Physics · 11th ISV Edition
저자: Walker, Halliday & Resnick
출판사: Wiley
단원: Rolling, Torque, and Angular Momentum