DelMonte, Guidubaldo, Mechanicorvm Liber

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1vbi enim minor potentia ſuſtinet pondus, ibi minor potentia mo­
uebit.
& vbi maior potentia in ſuſtinendo; ibi quoq; maior in mo
uendo aderit.
PROPOSITIO X.
Potentia pondus ſuſtinens in ipſo vecte cen­
trum grauitatis habens, quomodocunq; vecte
transferatur pondus; eadem ſemper, vt ſuſtinea­
tur, potentia opus erit. 115[Figure 115]
Sit vectis AB horizonti æquidiſtàns, cuius fulcimentum C.
E verò centrum grauitatis ponderis in ipſo ſit vecte. Moueatur
deinde uectis in FG, Hk; & centrum grauitatis in LM.
dico ean
dem potentiam in kBG idemmet ſemper ſuſtinere pondus.

Quoniam enim pondus in uecte AB perinde ſe habet, ac ſi eſſet
appenſum in E; & in uecte GF, ac ſi eſſet appenſum in L; & in
uecte Hk.
ac ſi in M eſſet appenſum; diſtantiæ uerò CL CE
CM ſunt inter ſe ſe æquales; nec non CK CB CG inter ſe æ­
quales; erit potentia in B ad pondus, ut CE ad CB; atque poten

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