DelMonte, Guidubaldo, Mechanicorvm Liber

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92
Si vero in O ſit potentia mouens pondus A.
Dico ſpatium potentiæ in O decurſum ſpatii pon
deris A moti ſeſquitertium eſſe.
Cor. 1 ſeptimebuius.
Iiſdem poſitis, ſit centrum B motum
in P; &C vſq; ad Q; & D in R; & E in
S eodem tempore: & per centra ducantur
ML 9Z FG TV Hk XY horizonti,
& inter ſe ſe æquidiſtantes.
Similiter, vt in
præcedente oſtendetur tres XH SE Yk
quatuor TG VF ZL 9M æquales eſſe.
&
quoniam tres XH SE Yk ſimul triplæ
ſunt ſpatii potentiæ, quatuor verò TG VF
ZL 9M ſimul quadruplæ ſunt ſpatii pon
deris moti; erit ſpatium potentiæ ad ſpa­
tium ponderis, vt tertia pars ad quartam.

ſed tertia pars ad quartam eſt, vt tres ter
tiæ ad tres quartas, hoc eſt, vt totum ad
tres quartas; quod eſt, vt quatuor ad tria.

ſpatium ergo potentiæ ſpatii ponderis mo
ti ſeſquitertium eſt.
quod erat demon­
ſtrandum. 182[Figure 182]
Si verò funis in E per alium circumuol
uatur orbiculum, qui deinde trochleæ in
feriori religetur; ſimiliter oſtendetur pro
portionem ponderis ad potentiam in O pon
dus ſuſtinentem ſeſquiquartam eſſe.
quòd
ſi in O ſit potentia mouens pondus, oſten
detur ſpatium potentiæ ſpatii ponderis ſeſ
quiquartum eſſe.
& ſic in infinitum proce
dendo quamcunq; ſuperparticularem pro
portionem ponderis ad potentiam inuenie
mus; ſemperq; reperiemus, ita eſſe pondus
ad potentiam pondus ſuſtinentem, vt ſpa­
tium potentiæ mouentis ad ſpatium ponde­
ris moti.

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