Posted by **Antonio** on Monday, September 13, 2010 at 9:27pm.

A boy whirls a stone in a horizontal circle of radius 1.3 m and at height 2.0 m above level

ground. The string breaks, and the stone flies off horizontally and strikes the ground after

traveling a horizontal distance of 9.8 m. What is the magnitude of the centripetal acceleration

of the stone while in circular motion?

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