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# Title: Leibniz-Handschriften zur Mathematik LH 35, 11, 18C
# Folio 205r, page id 00068193:0415
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ectron
latem,
ser
e
Sect. VI. De Concur su Corporum.
celeritatum, manente quantitate materia necesse ett idem
manere quadratum celeritatis, adeoque et, ipiam celeritatem ean-
dem. Manere autem semper eandem quantitatem materiae
in quam duu debet potentia tam in vi ictus, quam in vi de
rectrice manifestum ett. Nam n vi utus seu respectiva eadem
manet celeritas, licet contrariam diretionem recipiat vis
restectivn in quolidet corpore respectu cujusqe alterius quae est
media vis ictus totalis qui ab ipris fieri moicem potest, ade
oque eadem quoq’manet ejusdem corporis resutiva celeritat,
licet contrariam directionem recipiat. In quantitate pro-
gretsus quoque eadem manet quantitas materiae, nempe totius
corporum aggregati, ac promde eadem vi progremon seu
es
directrice manente, etiam celeritas centri gravitatis seu
progretsuis totius manet.. Sed non ideo eadem manet quan
titas motus in summa, quia progressus totalis invenitur
detrahendo sibi prognessus contrarios; unde eatenus com
pensando quantitas motus ea parte perit. Ea quo nascitur
propositio sequens 13.
gryß. 13.
sum demum eadem manet quantitas motus ante
concursum et port concursum, cum et ante concursum cor
pora ibant simul ad easdem partes, et post concursum rursus
simul eunt ad easdem non vero ad contrarias muicem partes.
Quod nante concursum duo corpora sibi ibant in contrarias
et post concursum rursus, secundum certas sailicet paral-
relas, extenus differentia inter quantitates motuum ante con-
cursum aequatur differentra port concursum. Quod s corpora
progrenum ex consentiente mutent in contrarium vel contra,
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