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Q: A cord is turned around the rim of a small hoop of radius 0.08 m and mass 160 g. If one end of the string is fixed by a ha
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a) We know that, from conservation of energy, Ź 7, 20, 2 + / mvp + magh, = // I² + 1 mp + mghz oco, = V, 50 magh, = 2 I co? +

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