CEXTRIFVCA CORP. SmAERICI 6*c. 145 

 0////> fccundiis, 



§. 7. Iii Scgintnto GLP pro inuenienda vi 

 globi fcciindiim dirccflionem OLM, notandum cfl, 

 quod vis fmgulorum punftorum vt S, limicctur per 

 oppofitiim in Y. Dicendum igitur: vti OS ad OX, 

 hx vis primitiu.i ad vim limit.itam puncfli S. Igitur 

 Vls Zonuhic circularis antchac inuenta, duccnda 



ca in §^, vt ^M -{a-g)pydy{6x -\-y^)~^' ^^ 



■ 2 2 n— I 



—U—glpy^^jiOX -\-y ) OX, ct integrando Vis 

 Circuli radio XS, ( vel XGzrj) dcfcripti, adJita lla- 



2 2 Tl 27M-I 



tim condantc —p^[OX -\-y ) -OX ]. Fiat 



nunc OX variabilc —m-\-x^ fubllituatur valor ipfius 

 y^^—zrx—xx , et ducantur omnii in altituoincm 

 "iLx—dx : erit Vis Cylindruli elementaris GVfg 





tcgrando cum addita conllanre , Vis Segmcnti 

 Sph.icrici GLP— ^(^— ^) , dudnm in quantitatcs 



n-i-i :t:_|_3 



" '' 2. 21. (n-J-1 it^-H-rJ 



»M-2 2«-f-+ 2n-f-2 2n-f-2 

 (rn.m.-^-lm-e-^lr x ) — m (w-f-j:) — m 



2 2n. ( ;n-)-2; 



^.2« ;a-i-i):M-2)'m-+-r) 



§. S. Simihter projit vlsccntrifiiga fegmcnti fphac- 

 lici IIMQ^rr/^^-f-/") (1u<fliini in quantitarcs fequcntes 



I1-+-1 :n-t-3 «-+-2 2n-j-r 

 __fi y— ^' (77 — ^Tu-f- ^rt O — ^ I (77— 2T '.'-4- -r'U) — 7 _^ 



2. ;n. (1-1-1 )(? — rj "*" 2 



4.:7i(tM-i),a-t-2J(«— r) 



T 3 II. Dc 



