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September 2, 2015

Homework Help: Physics

Posted by Iggy on Thursday, April 22, 2010 at 1:40am.

A ball is tied to one end of a string. The other end of the string is held fixed. The ball is set moving around a vertical circle without friction, and with speed vi = (Rg)1/2. At what angle from the bottom should the string be cut so that the ball will then travel through the center of the circle on its way to the ground?

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