(234) 



Momenta autcm virium i cof. ■>) J 11 atqiie 2 IT ka ernnt com-. 

 parata, vt momentum vis 1 cof. -vi 5 11 fit — 1 cof. ■>] S 11 C N ; 

 momentum autem vis 2 11 fit —z cof. v) 11 F K. Vnde fumma 

 horum momcntorum erit zzr 2 cof >! 11 (5 C N — F K). Quare 

 incrementum celeritatis angularis ^ a hoc momento virium 

 tempufculo bt produdlum erit 



a y — 4gcqr.yin(yCN-FK)9t ^ (-^j^ ^^^^ fj^ 



^ ^ 2 P fe fe 



;^ p XT p ir 5 C B ( D C — F C ) cq/. y) C B'' (D C — F C)/;n. ti 



erit 



^ vj 4g 3tco/.yinCBiDC-FC)Pco/.Yiy(nC'cof.Yi'-CB'/m.yi')-CB/;n.yil 



*^ ^ a P fe fe ( l) L = co/. ri" — B C^Jm. yj» ) ^- 



quae acquatio integrata praebet, 



y. 4gf co/.YinC B. I'C [yco/. 0^(0 C^co/.yi^ — CB" /m.yi') — CB/tn. y]J 



" ■ Tp fe fe (DC^ coj. /1» — C B'ji'i. i^) 



^ 4gcor.inCB [y co/ . yi yiDC co/. o'-C B »/yn.yi')-C B/m. ril f af FC ^ 

 ' ' 2 P fe fe ^U C^ coj. o^ — C ii^Jm. y]*) 



Verum eft 



Corollarium 



I. 



§. 7. Quia QN labente temporc continuo crefcit , 



CN vero continuo diminuiturj palam exinde efle poteft, cen- 



trum grauitatis C inter afcenfum coni reuera defcendere, atque 



hunc aicenfum non verum , (ed apparentem efle. Quare fi 



reda VC eousque producatur, donec redae af occurrat in 



punclo quodam g, erit V^ fpatium, quod centrum grauitatis 



coni pcrcurrit. 



Corol- 



