fl 5 g f =r ^-f^ j-j. erit 



tang. (p = ,^: C:'Z -l..c^ '' 



f - ^ f ?3 T -4- //) >J1g. ^ _ 



lang. », __ f-;aa -^- y /; _+. a u fc » ;,,i| 



hinc fit yfin. j — ^^-i. Cum autem fit 



^ — yrgg H- """''-^H- "'"^) erit 



fin. — ,''"^"''-/ , cof = e (g « -t.L?J-:^-i^£°/-< , 



atque fm. ^ =: 1^^^ ideoque yfin. jzr^. Poiro qiiia eft 



a cof / — e cof. f , crit tan^. s — ^-^-^^ et 



«="^^(/7-t-e£Cof.fO, 

 fme fubflituto valore v: 



^ Vfe *>// + 7(eaaf fin. f 0«. j> - 4- t t «♦ /m. P + e e (g g 4. ^/)» co/. f«) 



y _ T^ ::r77 



ob kk — ee—:^s. efCni. f fin. ^ -\- teff fin. f *, 



CorollariuiTi i. 



§. 19. Quo maior crgo initio fuerit celeritas ra- 

 dens k, eo diutius motus durat, antcquam ceflTante fric- 

 tione ad vniformitdtcm redigritnr. Ac fi globus conftct 

 ex rrateria homogenea, fit aazz\ff, ideoque motiis \ni- 

 fcrmitas incipit clapfo tempore t —. ~ min. fec, hmc ia 



hypothcfi 5 — -, fit t = rs^ exifientc g = i5J pedum Khe- 



nanorum. 



Corollarium 2. 



§. 20. Vt cenrrum globi eodcm tempore ad qnie- 

 tem rcdigatur, fiatus initialis ita comp.irntiis efle dtber^ 

 vt (It cof! 4 = - • et e~ -—^j— I'^it eri^o ^i"- ^ :^ ' ^t 



k = e ~ e/fin. f fin. ^ = e — tj fin. f 



binc- 



