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December 21, 2014

December 21, 2014

Posted by **Edith** on Wednesday, January 11, 2012 at 9:10pm.

of length 1.7 m making 3.6 revolutions every

second.

Answer in units of s

Calculate the speed of the ball.

Answer in units of m/

- physics -
**Steve**, Thursday, January 12, 2012 at 10:28amperiod = 1/frequency = 1/3.6 = 0.2777 s

circumference = 2pi*r = 10.7m

speed = distance/time (or, distance * frequency) = 10.7*3.6 = 38.5m/s

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