^a DE PROPAGATIONE PVLSVVM 



A celeritas — ^ , et vis ad eius motum requifita 

 — '-^f ^ , quae ipfi vi ^-^^ aequalis elTe debet. De- 

 inde ob V^zma-\-x-{-y , erit corporis B celeritas 



zz: ^^-^5t ^^ '^^^ ^^ ^^"^ motum requifita zn j-,2 — — 



ipfi - ^'^7" " '^ aequanda ; vnde confequimur has binas aequa- 

 tiones : '^-'-^ ; =M^h^) ^ g(^ ^^,,,^ ^1. 



la ab hac fubtrada relinquit : ^^^ — ^^"—^-y-^''^ exiften- 

 te x^y-\-z—a. 



§. 10. Haec poflerior aequatio ob x-\-z~—y 



abibit in hanc : ^^yr^ =— —^ , quae per dy multiplicata 



et integrata dabit "-^ — Q - '^ ; vnde fit d t 



^ ^Hglhb-yy) ■> ^if ^^ ^'■^ '^ {^^^ ^"t «i/^ y^ — 

 "^lbb-yy) • "^'^^^ integrando obtinebitur j^ — ^ fin. ntV % 

 c cof ntV \. Aequatio vero prior hanc induet fbr- 



zddx f ■. ^ r^ • iddx , 



mam : -^,2-— w«(j'— a') , quae tranfit in -^j^^t -\- xzn 

 bdn. ntVl-i- c cof nt V l. Ad quam integrandam po- 



^ ^. ivddu-+-^dvdu-{-2uddv , i 



natur X—vu., et aequatio nndt^ -+" '^w— » 



fin. ntV l -{- c cof ntVl difcerpatur in has duas : 



iddu , ^ 2uddv-i-^dudv j r .-,/ ~ , r .-,/, 



i^.-H«=oet ^. —b^\n.nty\-\-cco(.ntVl^ 



quarum prior integrata dabit Kzz.afm. «?yi-|-S cof «^ 

 y i vnde et valor ipfius v , hincque porro xzilvu in- 

 veniri poterit. 



§. II. Ponatur breuitatis gratia b^yn.nfV l -H^cof. 

 «^y|— T , erit iuddv-{-j^dudv—nnTdt^\ quae per 

 u multiplicata et iinegrata dabit zuudv—nndtJT udt 



et 



