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A child whirls a stone in a horizontal circle 1.9 m above the ground by means of a string 1.4 m long. The string breaks, and the stone flies off horizontally, striking the ground 11 m away. What was the centripetal acceleration of the stone while in circular motion?
Round off to two significant figures,a = 230 m /s2Therefore, the acceleration with which the stone moves in a circle is 230 m/s2.
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