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December 22, 2014

Homework Help: physics

Posted by Fred on Saturday, October 23, 2010 at 4:55pm.

A child is twirling a 0.0100 kg ball on a string in a horizontal circle whose radius is 0.118 m. The ball travels once around the circle in 0.460 s.
(a) Determine the centripetal force acting on the ball.
(b) If the speed is doubled, does the centripetal force double? (yes or no)
If not, by what factor does the centripetal force increase?

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