Homework Help: physics

Posted by Perry on Monday, June 4, 2012 at 12:33am.

A small block with mass 0.0400 kg slides in a vertical circle of radius 0.0700 m on the inside of a circular track. There is no friction between the track and the block. At the bottom of the block's path, the normal force the track exerts on the block has magnitude 3.85 N. What is the magnitude of the normal force that the track exerts on the block when it is at the top of its path?

physics - Elena, Monday, June 4, 2012 at 11:19am
zero

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