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July 28, 2015

Homework Help: phy

Posted by Naso on Tuesday, March 23, 2010 at 12:13pm.

A marble slides without friction in a vertical plane around the inside of a smooth, 21 cm-diameter horizontal pipe. The marble's speed at the bottom is 4.5 m/s this is fast enough so that the marble makes a complete loop, never losing contact with the pipe.What is its speed at the top?

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