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# Title: Leibniz-Handschriften zur Mathematik LH 35, 11, 18C
# Folio 181v, page id 00068193:0368
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Sect. V. Cap. 2. De Motus directione et
erescens vel decreseens. Et proinde si celeritas et directu
motuum componentium repraesentetur per latera parallelo
grammi, celeritas et directio motus compositi representati
per diagonalem. Directiorum autem cum velocitate ductat
Quantitatem Mlateriae vocalimus NisrM; Sed cum fleaum
simul designabimus; generaliori voce vocabimus CONZTVM
Unde nisus omnes sunt rectilinei, conatus vero tam rectiluta
quam etiam circulares aliterve curvilinet
per regulam (Fig. 8.) immotam BB incedat regula
s 
i
mobilis sC eodem semper angulo servato regulae ad regu
lam: Atque interim in regula motu proprio in cedat mobile 
sitque velocitas regulae ad velocitatem mobilis in regula, ut
a
1B2B ad BC m eadem semper ratione constante, quod fit, si
velocitas utriusque semper maneat eadem, sive eadem propontu
C
ne creseat utrobius. Compleatur parallelogrammum 1C1BZ
C
et ducatur
S
u
tatem et directionem motus comporiti ipsius M, seu quo tem
pore regula percurrit 1B2B; mobile M per currere 1B 2C
Manifettum enim ett, quo temporo BC ex 1BIC pervent
m 2B2C, mobile M pervenire ex B in C, adeoqe eum initio 
rit m 1B, in fine etse m 2C; Idque eum eadem proportione
q
C
locum. habeat im puncto intermedio quoeunque, (iptum enim L
pro arbitrio assumsimus) patet semper mobile M versari 
recta 1B2C, et partes ejus absolvere proportionales partibus
regularum. Etsi autem motus non sint uniformes nec pra
portionales, ut tales tamen seu motuum elementa, quae semper
ut motus uniformes assignabilibus minores concipi possunt,a
natum rectilincum componentu.
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