Spinta su superficie curva

Pagina 1

Sg;**k u^,yr^$,ri U.,"+t/U V*\o \t,nftt1uq. [^ ndn'\^or,nt- lp.crr,,u, f!-rvo, Aorx l,trro^Ao N$-' ì*\"qro0r,. Y{{,Yo{o \illlL C-ds-^'/^\; \^^it\ì$,*^e, !*, Wù* rY'-cla! Js^ - î.-rt-èn. ùS* -- h 15Àr-&\ hn"^ \'" m lu k^"\. 9!. \i\= ^n*Vo, fù., {r" h.^,qr&I" 1^ q-^\", \^ l^^r1n^1"c" o^óÀ ttnf* l"6^-r* l^ -'d dinr*^on,,l ) d."ve dN^. À\* \orvo t- '/ h y*r.- {'.i uo úw^vc! îr^r.^96. s^ = J,r. À,u^ =\îh Àu^ \x Nx I u^". J *.\N = \ rn^"r- x*|\r=tth, N, Nx T hn \, S*= JtJx' A.x ,\hk* =t'\l<z (*) '\ 4.. \**\*- \^^, i^trr "- U^V.^["^e, cr,rrtVrr, V q^c,o.r,,Ar-," c€, d.. , uv\^a., C,o-..)1o^rr.,rt- o't.Ynon^\'0.c, g"$-c.tt'\*, t9îtt\4/ l^ h^co,nri o', r- A"l- !-^q*^ A. e,al.eoL\* rw.l. \,26Jùr"",n\^o A."l!r- {\^o^tft^o.r.c-. à'dl"- Vtty*"\,i- L,r,r,vcr, u^Î- SÀ** \,t. / .o** *.*rp*^*,\- v"''"\"t'6.a'- st À"\\ aou '/F,\é- a'-!. vo{'t^^n^o w J,il- {f^*s kn^. !^ ry..t. &^\vo.- c- rg- wr*o a"^ (orú.dú na,..o:v^ha . = +À\x = 4. A\t .A X, ?: fv.oirQ^ona; Àlaat- .}il X r-ì. " \ 'f \n- ÀN. Ar fu^''A; ilúk'Ào é*,{-L' q""{^Vù,. d-"b"'4l [h,f\t^.o^d^ l.\ oqo*tro^,.*, q,b"qL 6r'tl-' 'q'^^t^bt'^o ^'\*\tto ' dfu,*À,."**" .af\ \\Af\o. !ìn^*.c., n \o- 0,O' 'n'h".[" dn- {erruVo-', d".. !p*\.. ,r*'n'c^\o-\* d'ùî!- WF. urnVo., V{' {nl"iAc' Kr-, \\ À"g!*- \'1^" 'f$"**' ììs"-l- tUiù' S : n.',o A,!- tQ,;A"' ). À* lf .tS"\ G =o lN \1^, ^l".vo-(e. S^-l N^ rQ- llo\N'"R- {or\l\G=o Gl=G-":K..]T', \_.. # nlvotog l* *n^ ao,^\( v{^\6 nf, t0r""À- tl" ir.^r*..-\.v..- &, n^c/\4yr^r- I -/, I I*irÈ\fdl - 5. -${ F\, \re