Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. -
Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German. Mean line confidence on this page: 0.90.
Original at the GWLB · Page image · Annotations (IIIF) · Download text
The machine reads it as
- and B will bC
- Flence, il the Body B be at rest, the POInES D
- nc, asls e Cale Ot che Elule
- LLB.C B: ana doublins ine, COmlequenE TeFMIS O
- the Proportion B - ] A. 2 A :: AB, 2CB. Lhac
- is in words, As the Asgresare or Sum of the Bodies
- srst Lines in che. Figure. And becaule B. A: 3
- A C. C B: cheretore by compotiion B-) A. A:
- 25 to the double os the movine or strikine Boc)S
- u Beelocitys of the strikins Body be before the
- Shock. be 1o the Velocity of the Duiescent Body after it.
- C OR. 2.
- WVheresore, is rhe Bodies A, B are esjual, ete
- Sum or Aggresate oF them must DC2. A. Wtience
- the Velocier ot the BodY B atter the ShocK, MalI
- be equal ro A B, the Velocier oF che Body a bC
- Pore ir, and consequenely rhe P’oints P and A beine
- coincident, A P che Velocies ot che morins Body
- alter the Impulie or Stock, will be = 0; Thac is.
- none ac aII. Wrhich also mas be casilr MeW
- thus; Because the Bodies A and B are equal, A C
- will bc = CB = C D = C F; Wheretore the
- poine Will coincide wich A, and consequenes che
- Body A atrer che Shock, Will be ac rett, and ctic
- Pod B will more rich che Velocier F B Or
- Is iberesore a persecttos Flasticte Dody stribe directus
- acainst another equal to it, end which is at rest; af-
- ter the Shock, the movins Body vill lose all its morion
- and the duiescent move on with the Velocity of the
- former.
- COR. 3
- tecte Bodies A and B are equat, aud bortimove
- che Pame war, as in Line che Ach oF thie Figure:
- thier vill move also boch che lame way afcex che
- Stock, and wich chemurual exchange ot their Ve-
- locities.
- FOr (nCC CF = CD: and A C = C B: C F
- A C, chac is F A, must bc = CD -- C B Or
- 10 B D. and consequenely the Velocier oFche Body
- atrer the Stock will be equal rothar OFB, betore
- ic. Besides, lince P A = BD, F. B will bC = AD
- and cheretore che Velocirr otche Body B atrer IC
- Shock, must be equalro thar oF A betore ic.
- COR. 4.
- Iche equal Bodies B and A move wich contrary
- directions, as in Line the porh of theFisure, chey
- vill also aster the Concourse and Shock, move
- Concrary wars, and wich cheir Velocities counter
- Chariscd.
- FOr sincc AC = CB, and CF = CD, AC
- =CE, ThaFis, A F must be equal tOC B - CD
- Or TOBD; and cheretore che Velocier oFcheBody
- A atrer che Strock Will be equal eo that et B, bc-
- Fore ir. Besides, since F. A = = BD, AD ril bC
- E B. BIE A D expresses che Velociey oF che
- Bodr A Betore the Shock, and F. B the Velociry oE
- B aster ic, Wheretore che rrurh oE chis Corrollary i5
- plain.
- Astex chis he Mems a very easie merhod eo bring
- chele Theorems ro Practice by a Calcularion in
- Numbers.
- For suppose (1) che Bodies A and B boch move
- ihè lame Way, and. chac che Velocirs os ue precedemt.
- Bod7
- D E MONS FR AFFO N.
- Since che commion Center Oi GraritY OF anY B0-
- dies, prores on wich elic lame uniform. Progrestion.
- and wich the Pame Velociry boch betore and alter
- che Sheet and Impulle, 25 he prores in Theorem 18.
- and chac in a Fime equalro chac in whieh che B0
- dy A mores che lensch A D, Or the C enter OF GT2
- vicy Cmores the lengrh CD; and alrer che Con-
- courle, che same Point C Will more che lensch DH
- WDC. This beins (0, let R a betatcen equas
- Eo CA; then since by Cor. Ot the precedins Theo-
- rem, tatins equal Pimes bols Detore and aiter cne
- Impulle, che distances oF the Bodiestrom the com-
- mon Center of Grariey, Will alivays be equal;
- then de Whac cime rhe common Center ol Graviey
- wilt De in IE, che Bodr A will be Found to be in a,
- ane Cheretore alter the Impulse, ies morion will BC
- From D corrards a and irs Velocier will be exprel
- sed b)D a, which is che lensch run over in chac
- Finte: Buc becanse CF = C D Or rD B C, anc
- CA -= F a the disterence berween che righ
- Lines CL and C A Will bc equal tothe difference
- berween the righe Lines R D and R a; thac is,
- F A = D a: Bur the rishe Linc D a expresses the
- Velocier ot the Body A alier che Stock or Impulse.
- and conseguenls irs Velocur will al(o bC. ex
- pressed BV the rigHE Linc F A; Besices, MH. CC MC
- relacire relocier of chele Bodies remains the laHe
- boch belore and atcer the Strock, and chat cherighe
- Line F. A denores che Velocier oF the BOdY A, ThC
- Velociry oF the Body B must necessarils atrer the
- Impulse be denored by che Line F B, and che di-
- ration ot ihe meriom will be crem F. romards B.
Cite
Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. - . Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/806933011:0281?run=74