Dura, haud imprimitur tota uno tempore plaga, 154$
Ni primis in particulis minimifque, fub i&u
Qure cum paulatim cedendo , & percutientis
Carpendo nimiam vim corporis, efficiunt, fit
Languidior maffam in totam , & finita poteftas .
Haud fic effugiunt laltum tamen, omnibus effe
1550
Qui (1 in particulis nequeat fimul , attamen ipfa
Primarum nequeat non effe in particularum
Suprema facie, qure toto impellitur idu ,
Mutat & extemplo , qurecumaue e l l , mobilitatem;
Namque aliud corpus penetrando frons fubiiffet
1555
Suprema hrec primis conta&ibus, iffet & ultra;
Quod quia non valeat fieri, diferimen id omne
Mobt-
L I BER D E C I M U S .
429
vclocitas co rp o ris d elap fi , a tq u e
id quidem ita ut vis ip fa percuflio-
nis fcnfim c x c c p ta e va n e fe a t fine
c ff c ft u , qui d e b e re t rcfp o n d e ie
infinitae vi im p u lfio n is im m e d ia
ta: ,
te
m om en tan e® : id em a c c id e
re in quavis co llifio n c c o r p o r u m ,
in q u a , d um p a u la tim parces in
trocedunt , a m it t a t u r p a u latim ,
te
per om n e s g ra d u s velo citas a
percu d en te ,
te
a c q u ira tu r a p e r
cu d o , donec d e v e n ia n t ad x q u a -
litatcm .
V erum a r g u m e n t u m in fta u ra -
tur in primis p a rticulis illius ,
te
poftrem is h u j u s . In h y p o th e fi cx-
tcnfionis accurate c o n t in u x c o r
porum debee o m n in o h ab eri a li
quis p o r u s , qui fic o m n iu m p ri
m us poft fu p crfjciem i b i , u b i fiat
percuflio per im m e d ia tu m c o n t a
d u m , adeoque aliquis ejus paries
folidus fine ullo p o to . Illa parti
cula folida illius parietis im m e d ia
te pcrcufla ab alia fim ili ad ven ien te
cum velocitate m ajore , d eberet
a cquirere partem v e lo c it a t is ,
te
illa alia am itte re partem per-fal
tum : fi e n im a liq u o m o m e n to
p b ft c o n t a d u m illa h ab eret g r a
dus 11 , h x c 7 ; to to illo tem p u r
fculo h x c h a b u ifle t m ajo rem v e
locitatem , a d e o q u e percurriffet
plus f p a t ii, q u o d fieri n o n poteft*
q u in h x c t r a n f c u r r a t u f t r a illa m
»
a d e o q u e c o m p c n e tr a t io n c m
h a *
b e a n t . Q u o a fi quis v e l i t a d tu a -
lem p r o g re flu m p o r o r u m in in fi
n itu m ,q u in ullus h a b e a tu r p r im u s
paries carens poris , q u o d fa -
nc o m n i n o ' n c c o n c ip i q u id e m
p o te ft 5 a d h u c in fta u r a tu r a r g u
m e n tu m in prim a fu p e v ficie illa
q u a c u m q u e , a qu a p e n d e t i m p e -
necrabilitas . Illa u tiq u e d e b e r e t
m u ta re v e lo c ita te m p e r fa lt u m >
q u i faltus , cum h a b e ri n o n p o f fit ,
n o n p o te ft illo p a f t o
e x p lic a r i
c o m m u n ic a tio m o tu s ,
te
c o n c i
liari in eo cafu im m e d ia tu s c o n ta -
f t u s c u m lege c o n tin u ita tis .
E ft qui dicat ad e lu d e n d a m m e i
a rg iim c n ti v i m , n u l l u m a h a b e r i
fa ltu m in m o tu fu p e rfic ie i , q u ia
q u an titas m o tu s eft p r o d u & u m e x
m ad a ,
te
v e lo c ita te , m a ffa a u t e m
fupcrficici eft z e r o , o b u n a m d i-
m e n fio n e m e v a n e fe e n t e m . A t in
prim is a r g u m e n t u m n o n l o q u i t u r
de faltu in m o tu , fe d in v e l o c i t a
te , in q u a fa ltum in N a t u r a h a b e
ri n on pofle o ft e n d im u s . P o r r o
velocitas c o n v e n it n o n f o l u m c o r
p o ribu s , f c d
te
fin gu lis c o r p o r u m
p u n itis : plen i fu n t M e c h a n i c o
rum ,
te
A f t r o n o m o r u m lib r i v c -
lo tita tc p u n < fto ru m :vclo citas ce n tri
g r a v it a t is . c o m m u n is
,
q u o d e ft
