1193 



l—s 



x=l—s 



L = 



2f 



u„' -f- -^ '^^ dx = 

 m 



■■■ i^iS' 



l/l +yM3/, 



x=0 



x t /2f 

 when again, like above, — I X — =v is put. H 



/. ^=: U. 



[' 



ence we get : 



x=l—s 



^X el \^\+y'~-log{-y + l^l + y') 



a=0 



The lower limit gives 0; for the upper limit i/ again passes into 

 ff, so that we have : 



^. = è «o' lx ^[^^ *^^1 ^- ^^' - ^^^ (- ^^+ ^1 +^/'')l 



(4) 



The second integral becomes 



l-s' 



-jV 



2/ 26 



m m 



T=.l — s' 



I 2/ 



i/fj' 



in which now y = 



x — {l—s) 



2/ 



l/l-yMi/, 



26 



-. We further find, 



m 



herefore : 



) ( Xm 1 



11/ 2.X2 



For the lower limit y becomes =0, and everything disappears, 

 r so that we only retain : 



^,= ]< +-{1 

 I m 



y\/l—y'-\-Bgsv 



sin y 



x=l—s' 





A = è 



2/ ) \ X rriV 



m ) K 26 |_ 



when 



I / 2/" 



quence of the relation 



ze 



q' is put. However, in conse- 



2/' 26 



M» = «/ -I- X (/__5)» (.?-«')' = 



m m 



at the culminating point of the collision (see above) <f' will evidently 

 be = 1, so that we finally get: 



^-è«o'(l + 



"''l^i 



X è^ 



(5) 



