Normal and Tangential Coordinates

et : unit tangent
to the path
en : unit normal
to the path
eb : unit
bi-normal to the path ( )
)
 
Velocity:


 

 


 
Acceleration:

 



 

 
 
 
ã Mehrdad Negahban and the University
of Nebraska, 1999-2000.
All
rights reserved
Copy
and distribute freely for personal use only
 
Department
of Engineering Mechanics, University of Nebraska, Lincoln, NE 68588-0526