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April 23, 2014

Homework Help: physics

Posted by Anonymous on Sunday, June 17, 2012 at 8:37pm.

A 0.40kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 2.1m on a frictionless horizontal surface.If the cord will break when the tension in it exceeds 80N , what is the maximum speed the ball can have?

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