DelMonte, Guidubaldo, Mechanicorvm Liber

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87COROLLARIVM
16 Huius.15 Huius.
Ex quo patet, ſi funis fuerit religatus in G, &
circa orbiculos, quorum centra ſunt BCD reuo­
lutus; potentiam in R pondus ſuſtinentem ſimili­
ter ponderis Q quadruplam eſſe.
orbiculus enim,
cuius centrum A, nihil efficit.
Si autem in R ſit potentia mouens pondus. dico
ſpatium ponderis moti quadruplum eſſe ſpatii
potentiæ.
Moueantur centra CD orbiculorum vſq; ad
ST; erunt ex ſuperius dictis CS DT ſpatio
potentiæ æqualia; & per CSDT ducantur Hk
VX NO YZ horizonti æquidiſtantes; & dum
centra CD ſunt in ST, ſit pondus Q, hoc eſt
punctum P motum in 9.
& quoniam funis EF
GHKLMNOP æqualis eſt funi EFGVX
LMYZ 9; cùm ſit idem funis: & funes circa
ſemicirculos NIO H αk ſunt æquales funi­
bus, qui ſunt circa ſemicirculos YdZ VβX;
demptis igitur communibus EFGH kLMN
& O9; erit P9 ipſis NY ZO VH Xk ſi­
mul ſumptis æqualis.
quatuor autem NY ZO
VH Xk ſimul quadrupli ſunt DT, hoc eſt
ſpatii potentiæ; ſpatium igitur P9 ponderis
quadruplum eſt ſpatii potentiæ quod demon
ſtrandum fuerat. 174[Figure 174]

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