DelMonte, Guidubaldo, Mechanicorvm Liber

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69FL ipſe quoq; pondus ſuſtineat, cùm potentiæ in E vicem gerat; quia
tamen ex eodemmet puncto ſuſtinet, vbi appenſum eſt pondus, non
efficiet propterea, quin potentiæ in BD ſint inter ſe ſe æquales;
opitulatur enim tàm vni, quàm alteri.
potentiæ verò in BD eæ­
dem ſunt, ac ſi eſſent in HM; quare tàm ſuſtinebit funis MD,
quàm HB.
ita verò ſuſtinet HB, atq; FL; funis igitur MD ita
ſuſtinebit, ſicut FL, hoc eſt, ac ſi in D, & L appenſa eſſent pon­
dera æqualia.
Cùm itaq; æqualia pondera à potentiis ſuſtinean­
tur æqualibus, potentiæ in ML æquales erunt; quarum eadem pror
ſus eſt ratio, ac ſi eſſent ambæ in DE.
Itaq; cùm pondus A in
medio vectis BD ſit appenſum, duæq; potentiæ ſint æquales in
DE pondus ſuſtinentes; erit B fulcimentum, ac vnaquæq; potentia,
ſiue in DE, ſiue in ML ſubtripla ponderis A.
ergo potentia in M
ſuſtinens pondus ſubtripla erit ponderis A.
quod oſtendere o­
portebat.
In 2 Huius1 Huius.Ex 3 Cor. 2 Huius vecte.4 Huius.
COROLLARIVM.
Ex hoc manifeſtum eſt, vnumquemq; funem
MD FL HB tertiam ſuſtinere partem pon­
deris A.

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