Physics

Tony

30 May, 15:26

What is the centripetal acceleration of a ball on a string that is whirled horizontally over a boy's head? The radius of the circle is 1.8 meters, and the ball is traveling at 9.2 meters/second.

19 meters/second2

84 meters/second2

110 meters/second2

31 meters/second2

47 meters/second2

+3

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