Fabri, Honoré
,
Tractatus physicus de motu locali
,
1646
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N19109
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<
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140
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xlink:href
="
026/01/172.jpg
"/>
<
p
id
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N197A1
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type
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main
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<
s
id
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N197A3
">Hinc inuertenda eſt progreſſionis linea; </
s
>
<
s
id
="
N197A7
">quippe linea AE repræſen
<
lb
/>
tat nobis progreſſionem motus accelerati, quæ fit in inſtantibus, & li
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nea FK progreſſionem motus, quæ fit in partibus temporis ſenſibilibus; </
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>
<
s
id
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N197AF
">
<
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in illa primo inſtanti decurritur primum ſpatium AB, ſecundo tempore
<
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æquali BC, tertio CD, quarto DE: </
s
>
<
s
id
="
N197B6
">in hac vero prima parte acquiritur
<
lb
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ſpatium FG ſecunda æquali primæ GH, tertia HI, quarta IK; </
s
>
<
s
id
="
N197BC
">igitur ſi ac
<
lb
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cipiatur linea AE, progrediendo ab A verſus E, vel linea FK progre
<
lb
/>
diendo ab F verſus K habebitur progreſſio motus naturaliter accelerati; </
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>
<
s
id
="
N197C4
">
<
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ſi verò accipiatur EA, vel KF, progrediendo ſcilicet ab E verſus A, vel à
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lb
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K verſus F, erit progreſſio motus violenti naturaliter retardati; </
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>
<
s
id
="
N197CB
">vt con
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ſtat ex præcedèntibus Theorematis; & quemadmodum progreſſio acce
<
lb
/>
lerationis in inſtantibus finitis fit iuxta ſeriem iſtorum numerorum 1.2.
<
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/>
3.4. in partibus verò temporis ſenſibilibus iuxta ſeriem iſtorum 1.3.5.7.
<
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ita fit omninò progreſſio retardationis in inſtantibus iuxta hos nume
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ros 4.3.2.1. in partibus temporis ſenſibilibus iuxta hos 7.5. 3. 1. </
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</
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id
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N197DA
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type
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<
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N197DC
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type
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center
"/>
<
emph
type
="
italics
"/>
Theorema
<
emph.end
type
="
italics
"/>
28.
<
emph.end
type
="
center
"/>
</
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>
</
p
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p
id
="
N197E8
"
type
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main
">
<
s
id
="
N197EA
">
<
emph
type
="
italics
"/>
Motus violentus durat tot inſtantibus ſcilicet æquiualentibus quot ſunt ij
<
lb
/>
gradus impetus quibus violentus ſuperat innatum,
<
emph.end
type
="
italics
"/>
v.g. ſit vnus gradus im
<
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petus innati; </
s
>
<
s
id
="
N197F9
">producantur 5. gradus violenti, quorum ſinguli ſint æqua
<
lb
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les innato etiam
<
expan
abbr
="
æquiualẽter
">æquiualenter</
expan
>
, motus durabit 4. inſtantibus etiam æqui
<
lb
/>
ualenter id eſt 4. temporibus, quorum ſingula erunt æqualia primo in
<
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/>
ſtanti motus naturalis, probatur, cum ſingulis inſtantibus æqualibus de
<
lb
/>
ſtruatur vnus gradus; certè 4. inſtantibus durat motus. </
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>
</
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>
<
p
id
="
N19809
"
type
="
main
">
<
s
id
="
N1980B
">
<
emph
type
="
center
"/>
<
emph
type
="
italics
"/>
Theorema
<
emph.end
type
="
italics
"/>
29.
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N19817
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type
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main
">
<
s
id
="
N19819
">
<
emph
type
="
italics
"/>
Si accipiantur ſpatia æqualia in hac progreſſione retardationis, eſt inuerſa
<
lb
/>
illius, quàm tribuimus ſuprà accelerationi, aſſumptis ſcilicet ſpatiis æqualibus; </
s
>
<
s
id
="
N19821
">
<
lb
/>
tum ſi accipiantur ſpatia æqualia prime ſpatie quod decurritur prime inſtan
<
lb
/>
ti metus naturalis, tum ſi accipiantur ſpatia æqualia date ſpatie quod in par
<
lb
/>
te temporis ſenſibili percurritur
<
emph.end
type
="
italics
"/>
; </
s
>
<
s
id
="
N1982D
">quippe quemadmodum in progreſſione
<
lb
/>
accelerationis decreſcunt tempora; </
s
>
<
s
id
="
N19833
">ſic in progreſſione retardationis
<
lb
/>
creſcunt, aſſumptis ſcilicet ſpatiis æqualibus; quare ne iam dicta hic re
<
lb
/>
petam, conſule quæ diximus lib.2. de hac progreſſione. </
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>
</
p
>
<
p
id
="
N1983B
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type
="
main
">
<
s
id
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N1983D
">
<
emph
type
="
center
"/>
<
emph
type
="
italics
"/>
Theorema
<
emph.end
type
="
italics
"/>
30.
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N19849
"
type
="
main
">
<
s
id
="
N1984B
">
<
emph
type
="
italics
"/>
Hinc instantia initio huius metus ſunt minora ſicut initio motus naturalis
<
lb
/>
ſunt maiora; </
s
>
<
s
id
="
N19853
">& ſub finem in motu violente ſunt maiora, in naturali ſunt mi
<
lb
/>
nora
<
emph.end
type
="
italics
"/>
; </
s
>
<
s
id
="
N1985C
">quia ſcilicet hic acceleratur, ille retardatur: </
s
>
<
s
id
="
N19860
">igitur velo
<
lb
/>
citas accelerati creſcit; </
s
>
<
s
id
="
N19866
">igitur ſi accipiantur ſpatia æqualia, decreſcit tem
<
lb
/>
pus; </
s
>
<
s
id
="
N1986C
">at verò velocitas retardati decreſcit, igitur aſſumptis ſpatiis æquali
<
lb
/>
bus, creſcit tempus; </
s
>
<
s
id
="
N19872
">igitur ſi accipiatur ſpatium, quod percurritur primo
<
lb
/>
inſtanti huius motus, & deinde alia huic æqualia; </
s
>
<
s
id
="
N19878
">haud dubiè, cum ſe
<
lb
/>
cundo inſtanti motus ſit tardior, ſitque aſſumptum æquale ſpatium; haud
<
lb
/>
dubiè inquam inſtans ſecundum erit maius primo, & tertium ſecundo,
<
lb
/>
atque ita deinceps. </
s
>
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