itó8 Riflessioni ec. 



eritque integrando t = i r-Xi C — a y' A — ;<; j 



V >t 



1/ A / — X . . 



I "<^ } V^ V^^'' — ^ yj h —- X j; unde colligrtur tempus 



5/ /.■ h / l/ h — x \ 

 ascensus per spatimii A M = . — r ( i — i — -, 1, 



f/ k h " 

 Ci tempus totius ascefisus erit , . Pro determlnanda 



altitudine ea F j ubi celeritas est niaxima erit 



X 



d . L { b -\- f ) \ I. — e ) — aj, .= o; ideocpie 



X X 



àx ~~~l n ^-^f ^ 



T ( ^ ~^f) ^ ^: d X ■, unde nt — - — = e . Conse- 



qaenter x = bl {b -\- f) — hlb =::■ h l { n ->r- i ) . Krgo 

 AF ~ bl{ìi-\- \). Hoc valore m expressione celeritatis snb- 



àX'^bhr r —ln-\-\\ 



stituto erit iiii — -—^ — (/i-f- A\}~- ) — ^('J+ A • 



— /(/i+i) I ^^^/,j 

 Est vero e = -; ideoque zìm~-^-— \ri — /(fZ-j-i)]'r 



ergo celeritas maxima in F erit 2 ^ j — ì- [n — / (n -+• i )], si ve 



/e 



,]/ Xng ^ , - 



2.o\ — j ob numerura n value magnnm- 



k 



Sit a =■ io ped., A — 5, erit b^=ì6, tj ~ 1200; unde 



ilt altitudo maxima A H = 19200 ped. , altitudo celeritati 



maximae respondens AF = 112 ped. , celeritas maxima 64 



imo minuto secundo , & tempus ascensus io 82" . 



AN- 



