Top position without having the string go slack

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An iron ball is swung in a vertical circle at the end of a 0.7-mlong string. How slowly can the ball go through its top position without having the string go slack? A) 1.3 m/s B) 2.6 m/s C) 3.9 m/s D) 6.9 m/s E) 9.8 m/s

Reference no: EM131443455

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