188 DE MOW CORFORrM FLEXlBILIl^M. 



poris BC circii B ccntnim gmuitatis G Iwbituriim effe 

 motiim fecimdiim dire<flit)ncm Gg ad BG normalem , 

 ciiiiis celerit;is debit;i (it altitiidiiii —ggq. Pcr motiis 

 ergo lcgem gcneralcm ccntrum graiiitacis G hic ipli ce- 

 lcrit;ite promoiiebitiir vruformiter in dired.im fcciinduni di- 

 redlionem G g : interea vero corpus B C circa hoc ceo- 

 trum gnuitaris G gynibitur eodcm motu rotatorio , quem 

 circa B momento folutionis h;\buerat fcilicct huius motiK 

 celcritas anguLiris in diH^uitia — i a ccntro G crit debi- 

 ta altitudiui :=: q. Hocquc crgo duplici motu , altero 

 re(flilineo ccntri grauit;uis G , alccro rot;itorio circ;i idcm 

 ccntrumcorpib vniformitcr in infiniaim promoucbitur. QiuKlfi 

 nunc toti fpatio illc motus , (jucm ipfi imprelfiim clfe 

 finximus , iterum dcmatur, pcr compofitioncm oriciur mo- 

 nis verus , qucm pars B C (bluta lubcbit. Q. E. 1. 



Coroll. I. 



13. Primo crgo momcnto p^u^s fcu virga BC pcr- 

 vcnict in fitum Ifgc , idct).]nc ad rcct^im Ji P pcriudc iu- 

 clinabitur , :ic fi circa puniftum fixum B cflct nmuum. 

 5cihcet dum ccirnim grauicatis G ab(oluit (p:itiohmi G^ 

 — dxzizgdtVq., pofito dt pro clcmcuto tcmporis , fict 

 ^(^ — -dtVq, ob angulum PBG — (p. 



Coroll. 2. 



14. Pun(flum autcm B dc rcAa O P transfcrctur ia 

 pun(flum b ., (iimta ^^^ — BG , ct cum ifia tninbhuio con- 

 gru.it cum cffcftu vis ccntrifugic , qiia p;in(flum Ji ciic;i 

 G rotatui , cuiib cclcritas c(l dcbita oJtitudini gg q -, pmi- 



duia 



