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# Title: [Johannis Wallis S. T. D. Geometriae Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica] Johannis Wallis S. T. D. Geometriæ Professoris Saviliani, in Celeberrima Academia Oxoniensi; Opera Mathematica (shelfmarks Leibn. Marg. 100:1/2, Stück 1; Leibn. Marg. 100:1/2)
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De Percussum.
Phaehomena eadem continenne ominia apud nos in terra POSItOS, Sive CUM TCrra
junctim ferantur omnia communi moeus sire una cum terra quiescant; quippe com-
munis eorum cum terra sive motus sive gules hac Phaenomena non immurat, sed
projectiones e percustiones xstimanda lunt ab iis motibus qui rebus hic in terra
exiltentibus peculiares sunt, et non cuin ipla terra communes. Adeoque, quae afferri
Tolebane objectiones E projectionibus inaequalibus eadem vi Faciendis, prout vel ac
Criencem vel ad Occidentem tierent; acque juxqualibus percuctionibus à Por-
mento Bellico globulum emictente tuturis, prout in has aut illas partes explotio
Freret; ee qua tune hujusmodi; etiam ipsis nune dierum tarentibus qui mocunt
Ferrae nesanc, nihil du urramvis parcem probant sire de Ouiete Perta rc de
Mot. Hinc iem qui ictum Gladii quadancenus declinans accipit, minort vI
pere atticitur, quam li imniocus deciperet, nedum si obriam iret. Alaque a
hujulmodi.
1et.
Cap
.XI.
ies l 301
008
P AOP. 1Z.
Si Crare motum, aeguali quiescenti, (non impedito,) direec impingat:
Ictusmagnicudo momentopraris mori aequipollet.
Fic. 300. Y, 510 Cirgvis mori A, pondus, m Z,.s celeriras r. C, adeoque momencum mr PC
quod in aequale B quielcens directe impingat; ferentur deinceps utraque celeri
cate dimidia, Er C; adeoque momentum A quod prtus Ferat mr P C, jamm proprer
Pondus m D, tiet n P L=F C =t PC, amicto omenti dimidio = M r L C; et
momentum B, quod prius (urpore quiescentis) nullum erat, jam, propter itidem
mF pondus, Het m L XZr C = Zmr D C, de novo acquiticum; per pFOD. 2. Hn-
jus. Cum iiaque deperdat A momentum Zmr P C, acque aequirat B momentum
itidem =mr P C vertuse asBresaTO MF C (quod momenum tuerat graris A)
aeenipoller retus masnitudo, Per prop. 5. hujus. (0
volBS
OBesicco et LS Ldem  Aiter 
Fsto, ut prius, Graris A, pondus mPG celoritasr C) adeoque momentum mr P C,
quod in aequale B quiescens directe incurrat. Atque intellisatur utrique accedere
communis motus celeritate - ZrC (FCETOTLUM.) Ouo calit FeretUE A ccleritate
C -- = r C = =r C (prOrtum,) e B celeritate OC = = r C = --Er C (PEtTOTFIIM;)
Fricgue Ictus maenicudo 2m D LZ Y C = mr D C, Per prOP. 7. hujus. Sed ca
dem exIL (peF PTOP. DEXCCd.) Ictus magnicudo, dempro illo qui addebatur com-
muni mocc; qui est catus propatirus.) Frgo, ex tries, lotuo magniculo elL M r P C,
UE PrIUIS.
ci dspico et orpsa neositorsiee ess e B sis
suitisiNII ers FBL s 1 3G1BB LOV ersihBA EWSOT SMHTEIO orp
EE
LBIIESL crp (Proit cariss s P, Ri  Pasi Hoy eus tse3 astatrosres, e lat
El5. 302.
n t d  1   li  a 2b i
Si duo Cravia Aqualia celesitaribus Anequalibus in ealcem partes
ferantur;. et sequens antecedenti dirocte impinsat: Ictus aequipollet
momento urrimris Geleritatum. Differencia labiss csests
sSC BsIlE OBPCBSO:BEILH cI
H Graris A pondus mX Celericas r er SC F, C, adeoque momencum mr DC.
quod in auale B; ccteruales G praecedens (cusis ilaque indtuencum m s P C.)
directe impingat. Ferentur deinceos vtraque (per prop. 3. hujus) celeritateC;
adeoque ucriusris momencum (proxcer uctiusque pondus mP) : mr P C. L : m SPC.
Deperdit ieaque A (propter sminorem quam r) momentum mr PC = = mrP C.
 SD C= =MYDC = =m SPC = L ZYC. Aeue canueem CrarI B ac
quitime Proplet= mrPC4= msCm SP C = =mrDC Z M5PC.
n+P C. LFEB, uiuIque ABBCCEd nF P C CA (per prop. 5. hujuS)
Ietus