Fabri, Honoré
,
Tractatus physicus de motu locali
,
1646
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<
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<
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<
chap
id
="
N22A20
">
<
p
id
="
N23ABF
"
type
="
main
">
<
s
id
="
N23AC1
">
<
pb
pagenum
="
314
"
xlink:href
="
026/01/348.jpg
"/>
produci </
s
>
<
s
id
="
N23ACB
">vno inſtanti ab ipſo corpore grani, vt ſinum rectum arcus infe
<
lb
/>
rioris ad ſinum totum; </
s
>
<
s
id
="
N23AD1
">ſit enim pondus in L, impetus productus in L
<
lb
/>
eſt ad productum in O, vt ſinus BL ad LA; </
s
>
<
s
id
="
N23AD7
">ſit in H, vt ſinus HC ad
<
lb
/>
HA; </
s
>
<
s
id
="
N23ADD
">ſit in O vt OA ad OA, ſit in D vt nihil ad DA: </
s
>
<
s
id
="
N23AE1
">hinc vides con
<
lb
/>
trarias vices impetus producti in ſingulis punctis, & determinationis,
<
lb
/>
quæ eſt à potentia applicata in A; </
s
>
<
s
id
="
N23AE9
">quippè ille continuò imminuitur ab
<
lb
/>
O ad D; </
s
>
<
s
id
="
N23AEF
">hæc verò continuo creſcit; </
s
>
<
s
id
="
N23AF3
">ille totus eſt in O nullus in D; </
s
>
<
s
id
="
N23AF7
">hæc
<
lb
/>
tota in D, nulla in O; </
s
>
<
s
id
="
N23AFD
">ille eſt ad totum, vt ſinus arcus inferioris ad ſi
<
lb
/>
num totum; hæc verò eſt ad totam, ſeu maximam, vt ſinus arcus ſuperio
<
lb
/>
ris ad ſinum totum. </
s
>
</
p
>
<
p
id
="
N23B05
"
type
="
main
">
<
s
id
="
N23B07
">
<
emph
type
="
center
"/>
<
emph
type
="
italics
"/>
Corollarium
<
emph.end
type
="
italics
"/>
6.
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N23B14
"
type
="
main
">
<
s
id
="
N23B16
">Sextò, hinc colligo rationem à priori huius imminutionis impetus; </
s
>
<
s
id
="
N23B1A
">
<
lb
/>
cum enim impetus deſtruatur ne ſit fruſtrà; </
s
>
<
s
id
="
N23B1F
">certè propter
<
expan
abbr
="
eãdem
">eandem</
expan
>
ratio
<
lb
/>
nem non producitur, ne ſcilicet ſit fruſtrà; </
s
>
<
s
id
="
N23B29
">cùm enim impetus ſit vt mo
<
lb
/>
tus, ſit mobile in L cum duplici determinatione alteram per lineam LA
<
lb
/>
alteram L
<
foreign
lang
="
grc
">δ</
foreign
>
; </
s
>
<
s
id
="
N23B35
">ſit autem hæc ad illam vt LA ad LR, vel vt L
<
foreign
lang
="
grc
">δ</
foreign
>
æqualis
<
lb
/>
LA ad L
<
foreign
lang
="
grc
">β</
foreign
>
æqualem LR, ſitque arcus LO grad. 30. LR eſt ſubdupla
<
lb
/>
LA; </
s
>
<
s
id
="
N23B47
">ſit
<
foreign
lang
="
grc
">β υ</
foreign
>
æqualis L
<
foreign
lang
="
grc
">δ</
foreign
>
, ipſique parallela, &
<
foreign
lang
="
grc
">υ δ</
foreign
>
æqualis L
<
foreign
lang
="
grc
">β</
foreign
>
& paralle
<
lb
/>
la; </
s
>
<
s
id
="
N23B5D
">certè hoc poſito, motus erit per L
<
foreign
lang
="
grc
">υ</
foreign
>
, ſcilicet per diagonalem, vt ſæ
<
lb
/>
piùs ſuprà demonſtrauimus; </
s
>
<
s
id
="
N23B67
">igitur ſi tantùm eſſet determinatio L
<
foreign
lang
="
grc
">δ</
foreign
>
mo
<
lb
/>
tus eſſet L
<
foreign
lang
="
grc
">δ</
foreign
>
; </
s
>
<
s
id
="
N23B75
">ſi verò conjungatur determinatio L
<
foreign
lang
="
grc
">β</
foreign
>
, motus erit L
<
foreign
lang
="
grc
">υ</
foreign
>
; </
s
>
<
s
id
="
N23B81
">ſed
<
lb
/>
impetus eſt vt motus; </
s
>
<
s
id
="
N23B87
">igitur impetus L
<
foreign
lang
="
grc
">δ</
foreign
>
, cum vtraque determinatione
<
lb
/>
conjunctus non haberet totum ſuum effectum, id eſt motum L
<
foreign
lang
="
grc
">δ</
foreign
>
; </
s
>
<
s
id
="
N23B95
">igitur
<
lb
/>
aliquid illius eſt fruſtrà; </
s
>
<
s
id
="
N23B9B
">igitur producitur tantùm impetus vt L
<
foreign
lang
="
grc
">υ</
foreign
>
; </
s
>
<
s
id
="
N23BA3
">ſed
<
lb
/>
vt L
<
foreign
lang
="
grc
">υ</
foreign
>
ad L
<
foreign
lang
="
grc
">δ</
foreign
>
, ita LB ad LA; nam triangula L
<
foreign
lang
="
grc
">υ δ</
foreign
>
, & BLA ſunt æqua
<
lb
/>
lia, & æquiangula, vt patet. </
s
>
</
p
>
<
p
id
="
N23BB7
"
type
="
main
">
<
s
id
="
N23BB9
">
<
emph
type
="
center
"/>
<
emph
type
="
italics
"/>
Corollarium
<
emph.end
type
="
italics
"/>
7.
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N23BC5
"
type
="
main
">
<
s
id
="
N23BC7
">Septimò colligo, ſingulis inſtantibus mutari determinationem quæ eſt
<
lb
/>
ab A, & conſequenter determinationem mixtam, ipſamque acceſſionem
<
lb
/>
impetus noui: </
s
>
<
s
id
="
N23BCF
">hinc etiam rectè explicatur, in quo poſitum ſit illud impe
<
lb
/>
dimentum ratione cuius corpus rectà deorſum non tendit; quippè in
<
lb
/>
eo tantùm poſitum eſt, quod ſit noua determinatio, idem dico de reſi
<
lb
/>
ſtentia. </
s
>
</
p
>
<
p
id
="
N23BD9
"
type
="
main
">
<
s
id
="
N23BDB
">Obſeruabis autem idem præſtare funem affixum in A ratione conti
<
lb
/>
nuitatis, & vnionis ſuarum partium, quod præſtaret potentia in A fune
<
lb
/>
ipſo trahens, vt conſtat, ſeu pondus contranitens ex rotula appenſum. </
s
>
</
p
>
<
p
id
="
N23BE2
"
type
="
main
">
<
s
id
="
N23BE4
">
<
emph
type
="
center
"/>
<
emph
type
="
italics
"/>
Corollarium
<
emph.end
type
="
italics
"/>
8.
<
emph.end
type
="
center
"/>
</
s
>
</
p
>
<
p
id
="
N23BF0
"
type
="
main
">
<
s
id
="
N23BF2
">Octauò colligo, creſcere impedimentum ab O in D in ratione ſi
<
lb
/>
nuum verſorum arcus ſuperioris; </
s
>
<
s
id
="
N23BF8
">cùm enim in L v. g. motus ſit ad mo
<
lb
/>
tum liberum in O vt L
<
foreign
lang
="
grc
">υ</
foreign
>
ad L
<
foreign
lang
="
grc
">δ</
foreign
>
vel vt LB ad LA, impeditur motus vt
<
lb
/>
RO; </
s
>
<
s
id
="
N23C0C
">nam motus, vel impetus in L eſt minor impetu in O, differentia
<
lb
/>
vtriuſque RO, ſed RO eſt ſinus verſus arcus OL; idem dico de
<
lb
/>
reliquis. </
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
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archimedes
>