Homework Help: physics

Posted by zach on Sunday, March 20, 2011 at 10:18pm.

A certain roller coaster has a circular, vertical loop of radius 10 meters, such that at its top the riders are upside down. How fast does the roller coaster move at this point if the riders feel perfectly weightless when passing the top of the loop?

physics - Anonymous, Sunday, March 20, 2011 at 11:28pm
please help
physics - drwls, Monday, March 21, 2011 at 12:52am
I will be glad to critique your thinking.

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