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I t?\j:t}o+a.dt*;(tAJ: UJ" {9/{*NGddnL Np nintrt+twN4t- Nrctnne-ltt( r-...--.=_ :.Fp-T .1,/ t.lIAt^ftot71c-( tlgloc<t: {r .vt " \-co = rzjTf"j"tr- [ a^.{.,'s(6D.l!{e [*rre rern {,t pw-o'a.t! cLfrne +1'-t ,,l.Lar=t etf,ocu{o.r.^l dr=Y Ne-r t,/ / /| *tpuf'io( acce leta/t:oa :€AU+ Awdt'- ----'t :Y - -'Lr At Atrtehl;lrtluua*/ /*,q,l7i$f = tn'' (*)4.r= (,^)t= .a'l^" l, ,l*'^trtt^SAt"r</o, f" "h*f nf ?"4Att/xt axclan/'t',ru1lr*e-;[or7'%./.wcl\,n,^., = 5': cudl = '(+)"r0<lzoT*ft 0 a/tfL kt/^/ E l'tc E^Ee 6/111, l,^,t .ueu il1. 2r.,iuJ "L^1lu lLof /;q*' hd"l', "af(*lr*.tL/'*4)' ;, ,? fu i*,'k ' tnv'Wt L^r* J[,^t' vlz ru) , {tnrte/*e,/'lz nLlr-o/ h'nr/r'.UNJTir ),\n rn bT ;R^=lw,Vt'!a(r.\'h/e ahooJc l, *ri/. 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(.i'fr tLrV r"/'t)lt t-+T__{-aa. r l. Ift rvlr,. 4 *h'u4 !-t' =11. =+I,z\f \ _(4&.LT< rj't-){t, 4sxietqukL1.I{-+fT.=iIoFr- '-{I,rp**+lrt>.r);: rrfot(htFu*F- KbrrarTdrt zrp 4 prc*n t(,c_ >E7ecfL=rf i.*7 =tutt= lA(2uo = Twf1{:rr,rJ j =tltfzl- = Ic!''l\.r*t'l*. tI r--,tuj---at&at(l5t( ELVkI({^t * lalMvlf( tlttEttTV 4ry fl" wl erLn"/ {*f o"4u2 * ^ tyb ,-tIk 4^vln ,'s rt,.lureola) l,u -t€f*t s D : * = o + L'I*I'-'J- .I't+o4/bfl^-^t2O Rigid rods of negligible mass lving along thc 1 axis con-nect three particles (Fig. P10.22). The svstem rotatesabout the r axis with an angular speed of 2.00 rad/s. Find(a) the momert of inertia about the x axis and the totalrotarioral kinetic energr. evaluated from +/@! ard (b) thetangential speed of each particle and the total kineticencrgl evaluated li-om ! ln;r,,!. (c) Conpare rhe answelsfbl' kinetic energl in parrs (a) and (b)..,.nn.*$,: r.uu./g ._-ffi:t;'00,":.oo t<s pr = -+.oo mat)rl.)u ,: L{E,v-(l{r : 2 kq-dt,=3 *lz' 'Zv<f,2, -4w? "oJ/,r, ^*.1 l<R 7v+,' 7. l<,, 6t) ?.C,>-*1,*-<trtl: ik3b)ltt + t",'lnzo2r-,a - Io)f" . 4,1,t *, ,I z tctr. wtl(^Jrqq \ -_ lKtl 1-l</dr'*1'V, : f. t04"r"r--V9=frt^J'3u^. 2(4J4 rxl.( ^/!:4n/sK= l(tnl(q+t<3v,zn l^'vr' ' J, u^,vr''2^,Jo4. /n'f< |t., (3,/ 7,)Ko 'k,<d hnf ",The fishing pole ir Figure P10 32 makes an angle of 20 0'with the horizontal \Vlrat is the torque exerted bY the fishabout an axis perpendicular to the Page and passingthrough thc angler's hand?t?F =toonJr^ looN . S,1,. S)- -_/4& N, A ).. f..)(---)rx+F/- y'f s,hft oo = r F (c^;)r+lD) T/x>-r,l 3'^/o'tN) 'eI0, oltra,/,/rzo.rt$.(3n)"u'I&'?.,' \- l^s,'3)' I ui/faw \f .f\-5,^U =V.A-A model airplirne nith rrass 0.750 kg is tethered bv awirc so that it flies in a circle 30.0 m in radius. The air-plane enBine provides a net thrust of 0.800 \ pcrpendicu-lar to lhe lethering n'ife. (a) Find thc torquc the netthrust produces about the center of the circle. (b) Findthe angular acceleration of the airplane when it is in levelflight. (c) Find the translational acceleration ol the air'-plane tangent to its flight path.L: 3o 'r'i- 0.6 NLl':u..f L,) 4q'rx :r.o1 ^/gzZ( N *.,An electlic motor tunls ir flr'theel thlough a dfive beltthat joins a pullel on the motor and a pulle\ that isrigidll attachetl to the flrvheel as shoun itr Figurc P10.39.The fl\'nheel is a solid disk with a mass of 80.0 kg and adiametcr of 1.25 m. It turns ol a liictionless axle. Its pul-lev has muclt smallcr mass and a radius of 0-230 m. Therension in the upper (taut) segDent of the belt is 135 r",and the fluvheel has a clockrvise angular acceleration of1.67 rad/s:. Find the telsion in the lo$er'(slack) scgmentof the belt.-P.I-i'u-L-)T- nz_!- v\--L, + Lz --T=urNb4' t .61k4rcz)-Toll\ \ z-1 >\XF. =-- \(r Ffr -tVto'Y t(t-rf*T .r(r.-r,) = Lu#)' n^Q' ?-!? L"',E{q--- r,s] rjtrttl?= I'lt^K(a) A lrnifbrm solirl disk of radius /? and mass ,\1is frec torotatc on a frictiolless pilot throtgh a point olr its rinl(Fig. Pl0.51). If the disk is released fiolll rest iD the posi-tion showu bv the bluc


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UCF PHY 2048 - Notes

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