55.  The drawing shows a wire tooth brace used by orthodontists. The topmost tooth is protruding slightly, and the tension in the wire exerts two forces   and   on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 21.0 N, what is the magnitude of the net force exerted on the tooth by these forces?

 

 

Since T = T’

 

 

 

 

 

 

Please send any comments or questions about this page to ddonovan@nmu.edu

This page last updated on January 11, 2020