C 145 ) 



eunte , velociwte alia ■ B , et fi anguli inter 

 directiones et axes nuncupantur 5, s, ^, ha- 

 bemus has functioncs : 



^' = B cof. ^; b' zzV, cof. e; c' -V>cof.K; 

 quibus indicantur velocitates ratione axium OX, 

 O Y et O Z, Igitur fi concipimus corpus 

 eodem tempore, feu potius fimul agitari a viri- 

 bus, in diverfis directionibus AO et B O agen- 

 tibus, movebitur ratione axium coordinatarum 

 his velocicatibus: 



A cof « -f B cof S ; A £•£>/. /5 -f- B cof s\ 

 A cof 7 -f- B cof ^; 



fed cum corpus moveatur in directionc intcr- 

 media OP, quoniam fimul moveri nequit in 

 directionibus AOet BO,fiA,/t«ety, vo- 

 cantur anguli incer OP, et axes , C autem de-. 

 notat raotus velocitatem , erunt etiam ceJeri- 

 tates, ratione axium, proporcionales his quan- 

 titatibus : 



C cof A ; C cof [Ji ; C. cof. v ; 

 xjuapropter : 



C cof A = A cof <x -^- B cof 5 ; C cof. ,«; 

 =: A cof iS -|- B cof e ; C cof v SS A cof y 

 \ B cof K- 



Sint O A ec O B , proportionales velocitatibus 

 A et B , et ducatur A P = O B = B , paral- 

 lela O B ; porro demittantur ex A et P pcrpen- 

 dicularcs A^, P/» , crit, ducta Ar, parallcia 



O Ox 



