1^6 Opuscula . 
pofita A r=-^ &L B — 0 , unde // rr T + ~ 
. l^lSc.rr=r+~^— i.Sc. V. Ei fecundavero formu- 
la habetur fadla N ~~ — ^ & A — o: unde oritur u 
r % ' 
— ( il^i — I . C c . w-4- fed C c . _ S c . er- 
r r 
go // =1 F-l- — I . S c . r ut fupra ,k\iu — V — ( i — 
. S c . 
Tabulam de more exhibeamus , qux quantitates often- 
dat , dum velocitas centri — V xquat multiplum quadran» 
tis 5 cujus radius = r. 
V 
o 
2 W 
3 w 
4 W 
etc. 
s 
o 
4 
9 (W^ 
I 6®^ 
etc. 
4 
4 f* 
4f* 
% 
e 
iL 
e — 
e 
etc. 
X 
o 
te-^ — xr"- , 
i6a>^ 
etc. 
4 
- le h ^ 
4 
4V 
u 
o 
w — rH ^ 
2 W 
3 w + r— ' — - 
r 
4 w 
etc. 
Ex hac apparet, valores diftantiae z poft quatuor terminos 
redire eofdem ; omnes autem medii funt inter maximum 
— ^ — , & minimum e . 
f« 
Confedariis dedudlis lucem augebit conftrudlio. Seda 
Aa = a i F/g. 3.) foco a, vertice A defcribatur parabola 
A T , ut A O exprimat centri velocitatem — T, dum cen- 
trum tranfegit fpatium O T . Sit initio corpus iii B , & A B 
e . Ad abfciiram A O defcribatur curva e Z , cujus or- 
dinatae ad Cc.P^fmt ut ^ — e : r . Conftat , primam ordi- 
r^ . r^ 
natam Ae — e. Erit ZO — z.SecaAErn — ■ , 
2 (14 2 2 // 
& duc E o parallelam A O , ad quam produc o Z : manife- 
ilum 
