February 23, 2017

Homework Help: physics

Posted by heather on Wednesday, February 23, 2011 at 7:11pm.

A child is twirling a 0.0165-kg ball on a string in a horizontal circle whose radius is 0.149 m. The ball travels once around the circle in 0.543 s. (a) Determine the centripetal force acting on the ball. (b) If the speed is doubled, by what factor does the centripetal force increase?

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