3 ( J4 Dr. W. L. Robb on (hciltations 



Substituting this value of i in equation (1), we have 



RA _J^< . / i R2 



For t = we have Pi — P 2 = 0, and consequently from equation 

 (6) we obtain 



A _ g_„ . 



L VLC-iI? 

 and from equation (5), 



/-- e 2L sin. /*__£*$. 



B* V LC 4L 2 



Vnr" 



4L 2 



Substituting this value of 2 in equation (1) and reducing, we 

 obtain 



2L VlC-4L^ 



+ 2L V LC " £ cos V EC - £ * '} ' 



or 



R * /T 

 Be *l*a/JL 



t^U/d^ 1 



LC 

 V LC~ 



LC 4L a 



2L 



+ arctan RVL0 ^ 



VLc-iPJ- • (7) 

 If in equation (7) we let ,y/ _ = 2™, and 



