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484 022 Me Vis Inertiae of Matter, EM ‘ . P.] in‘ a Letter to Mr. Baxter . mifiake in this point, fince in the fame number I find him obferving: " We may eafily conceive 4857 "a?" that obflmoie pot ter (5] 'w/Jzfl) a [may end eav our wzt/J " that a body as 3 a, 44, &c. would make 3 or " 4 bodies equal to once a, each of which would ue [12 it: pro/mt fl 1‘ J w/Jet/Jer of motion o" 75/21.? I fay, ought the re :5; to be an oppofing force e ual to the u --The truth howeve r is], that therfe ilsliibt ligge? " require once the firft force to be moved with " the celerity c." If then in 3 a, each 4 requires once the firfi forcef to be moved with the celerity c, would not each move with the forcefand ceIerity c; and confequently the whole be 3 a mov- all Its might lo contin how large foever, moving with any velocity 110i; great foever, but may be {topped by any oppofin force, how finall foever , continually applied Ag? leai't all our mod ern philofophers agree to tell I15 {00 ing with gj'and 3 c .3 After {0 dif'tinét an oblervation, how could he mifs of the confequence, and imagine that i c and 3 c were the fame? Thus as our author's abatement of celerity in the cafe of 2 (2 moved by 1 f is imaginary, 1o mutt be his additional relif'tances-And here again, I am at a. lots to difcover any eHeCt of the Vis Inertize. In No. 6. he tells us " that all this is likewife " certain when taken the contrary way, viz.from " motion to rg/Z; for the body a moving with a cam mt met Let dTurn thle thi' ngi' n‘what r lig ' htIpleafe, I . I cover .t 16 V15 Inertiaz , nor any effect of It is allowed by all, that a body I (z movincr with . it. a velo city I o, and a force If]!er'z 'fl'r mzoz‘ loaf body 1 a at tell, they wrll aft erwards move all 20getfaer, each with f c and if; which, as I {aid betore, is equal in the whole to 1 c and If If fYrs Inertial, asli D . I b I n‘ this cafe, neither aba tes the orce nortie‘vc ocrty of bod ies, what does it, or how does it difcover itielf? " certain velocity, as 6, requires a certain degree " of force or refiltance to ftop that motion, 65c. " See." that is, in other words, equal force is neceifary to deftroy force. It may be 1b. But how does that difcover a Vis lnertim? would not the efl‘eé‘t be the fame g/ were were nofucb thing I? A force Ifflrikes a body I, a, and moves it with the celerity 1 c, i. C. with the force If: It requires, even acording to our author, only an oppofing I fto itop it. But ought it not (if there were a Vis Inertim) to have not only the force 1/; but an additional force equal to the force of Vis Ineri Ugo I imagine I may venture to con clude my obfer» vations on this piece, almoft in the words of the author; That ifthe doctrines of the im materiality of the foul and the exiltence ofG od and of divine providence are demonflrable from no plainer principles, the day} [L e. t/Jefl] has a delperate caule in hand. I oppofe my my; to his atheift, becaufe I think they are diametri cally oppolite ;‘ and not near of kin, as Mr. Whitfie ld teems to: fuppofc; where (in hisjnurnal) he tell us, " M. B. " was a day}, I Add a/mo 2 [211211272 at/oe j/Z 5',' thatisr elm/Kc, I had almoit faid. r/Jarcool. ‘ I The: ‘llllllllllllllllIllN‘lllll‘ W |
