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A boy whirls a stone in a horizontal circle of radius 1.8 m and at height...
A boy whirls a stone in a horizontal circle of radius 1.8 m and at height 1.8 m above level ground. The string breaks, and the stone flies off horizontally and strikes the ground after traveling a horizontal distance of 8.1 m. What is the magnitude of the centripetal acceleration of the stone while in circular motion? Number Units
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