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# Title: [Philosophiae Naturalis Principia Mathematica] Philosophiæ Naturalis Principia Mathematica (shelfmark Leibn. Marg. 166)
# Folio 203, page id 1041163592:0237
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eRINCIPTA MATHEMATICA
iF CFIO
XI
De Motu corporum minimorum, quae Viribus centripetis ad sinculas
magni alicujus corporis partes tendentibus aritantur.
PROPOSETIO ZCWV: TEIEOREMA ZIVII
Si Media duo similaria, spatio planis parallelis utrinque terminato,
distinguantur ab invicem, e corpus in transitu per hoc spatium
attrahatur vel impellatur perpendiculariter ver sus Medium alter-
utrum, neque ulla alia vi acitetur vel impediatur: Sit autem
attractio, in aequalibus ab utroque plano distantiis ad eandem
ipsius partem captis, ubique eadem: dico quod sinus incidentiae
in planum alterutrum erit ad sinum emersentiae ex plano altero
in ratione data.
Ca5. 2. Sunto Aan Bb
plana duo parallela. Inci-
dac corpus in planum pri-
us Aa sccundum lineam L
GFI, ac tototuo per spati-
um intermedium cransitu
aetrahatur vel impellatur
versus Medium inciden-
cix, caque actione delcri-
Bac lineam curram FIL, 8C
emergat secundum line-
am IK. Ad planum cmer-
gentix Bb CrisatUE PEE-
Dendiculum PMV, OCCUE-
rens tum linexe inciden-
ciae G EI productae in M,
cum plano incidentix aa in Re; ec linea ChiessCuils A l producta
OcCurrat AM in L. C entro L. incerrallo L. L describatur Circulus,
2O3
Co
PRTMVS