( Đề thi gồm có 02 trang) !" #"$!%&"$!' ()&* !+$, / 01%1"$!' 23!4(2,0 đim) !"#$%&"#'!$()*$ $+,- ./()*0123. .45()* $67'!8)69 $1 23"4(3,0 đim) 1&32:,; C µ !<=<>7<?@:!A& "'B3"C!"3"D,9 E1?7 <>6?4!-C!0$".F3""/=>7?1G 3!375<>6?HI3":!4G32J !<=>7?1 1K5LM&(..06230!48!6 34) N OU V = 1PL45L N Od cm = 1Q25LR HST0UV1W$634)5LL'!X YY9N OU V= 1ZT .!S!M<=[L34)6RHSU7L\$"/]^ ,-. 1 23%4(3,0 đim) 1W(.4>?!_2"/8! M2_!"#L`a$46b1 c!"#091d4J$!I8!M26J 26J2LeG1 1f<.4"#("/3%8! M2_2"Ge1Z8!M2C!g $!Ih1^i i ,hjfg/$!<2k H8!M2l 12ML4=f7Lfm\38!M21 23'4N3,5 đimO 1X'nF 9- k N m = @*F6 !$J6 !"/@ (M2"/TM"# 9 m g = 1P22C!X@ )"U*F1^R[:!J2 69x cm = / 9 ; . @)"U*F"/'!"/1^R_Ri'@)"U *F6C!"U"/$$6ig/J2S0H1l8 - g m s= 1 OE7)"UGH1 O2MLB8<=J2 69x cm = − 7J2 69x cm= 1 O2:!o""#HM<=[B !7M/J2 p07p F1 1C!XR@_i'6R t ∆ ML5 $7)p07p1&<:!J2 b ; cm s π i k . i + Nl O Nl O ZqZ // Yr cm s π 6.![ML t ∆ :!J2/ s cm s π 12$H1 2354N3,0 đimO &R.H4!!73%!S! LI Ll_3%_33!^ - MtB../_' ^ ' 1_'^ ' 3!7$=^ , )k7^ ,9-)kM'7$ =s9 - 7- - 1&!"#.3="/.0L=λ ,-7λ , ;-1^73!H_'8H'1 12ILlH!S3!^ - H_1 1W<!"#.3="/.λ ; ,9G'HL_0$!] 2304N3,5 đimO ^&3"Ge%3\u6_ 3^!L3\! B7)1 W( !&&34)'C! - .N OE1 AB u c π = ?T:!3\HS HM4P1 1? ! M4P634)3! _ !&> ? "# s- j - - 1U V U V = = O23..!8H&&>?1 OE7<!FH34)F !3\u1 1W3!H_3 ; - 1 − = C F π P4P\G34)3!_5<6? - 1 = MB U V 24JH3\uILl 2364N2,0 đimOv"U4I1 ^MwG)&?^U4 M<./&>?($840" Ge;6/4[G4"/1ZoG 423G4<'4J [3..45Mw841KL 241 &&&&&&&&7&&&&&& ZR$R.1111111111111111111111111111xxxx11f411111111111111111 K4J11111111111111111111111111111111111xxxxx1Py$111111111111111111111 K4J111111111111111111111111111111111Py$11111111111111 z z R L C K A B M N ZqZ ZqZ; 8 9 8 9 8 9 8 9 k v s (Gồm có 04 trang) !" #"$!%&"$!' ()&* !+$, / 01%1"$!' :; < = ;>?&; < @AB 23! C":$DE {^RC!"UC!!< K&$ C!7M=& | - , 1 f,} - , 1a S − NO $ ,| NO E/ ,|.+|~.+N;O K&'! C! '! , S a NsO E/ ,.+|~.+N9O ,69 ,} S a , - 691v a − , 9 1 16 a S a − − •,}69 1 ,N| ONrO N;O6N9ONrO •,}69 1N.+|~.+O,.+{~.+ .L)"UG"#~,-6r $:"5 $:"5 $:"5 $:"5 $:"5 $:"5 $:"5 $:"5 23" C%:$DE FG!:5$D HG!:5$D 1d4J3!37€I3" € >? ,D1,9 E {•HI3"M)_!&:!A&"‚ )_!< !<! $>,:D,691- |; ƒ1 1d4J!< {P34)L€ 1 WC!M3S0HRHS F P = mg mg mg q E mg q U E U d ⇔ = ⇔ = = = NO {PL34)5L_X€ Z#)IH jF P → → !CRHSRHS !<'!"/1v"UGJ!„„!U F P m a → → → + = P q E ma ⇒ − = U mg q ma d ⇒ − = NO …l& d d at t a = ⇒ = N;O $:5 $:5 $:5 $:5 $:"5 $:"5 i k f i + Nl O Nl O fm k m k k m i ' 9 | 9 69 9 |69 • α s =NONO 1 U U mg mg ma g g a U d U − = ⇔ − = N O U a g U ⇒ = − N;O N O d t U g U = − , 9 9 . $:"5 $:"5 23% C%:$DE FG!:65D HG!:"5D 1KRJ2jJ2Lm1 c!"#$L,}{m,6bNO M, † 9 d d − = − NO =NONO"#,9- m,;- †1 9 † d d f cm d d = = + EeG<3[28‡3LNLTUO 1eG'4JLfm ff m , f,„i ,h1.+ fm,„{„i {i fm,h{h1.+{h.+,h1N{.+{.+O ,}ffm, $:"5 $:"5 $:"5 $:"5 $:"5 $:5 $:5 $:"5 $:"5 $:"5 23' C%:5DE !G":5D "G!:$D 11 . M 9- - . -69 ω = = = ?$>,9 &,-6) ! ; π ϕ = →v"UG ' 9.N- O NO ; π = + 11PLB8=J2 ' ,|697J2' , 691 . -6-sˆ. ;1- ;- α π π ω ∆ = = = ≈ $:"5 $:"5 $:"5 $:5 $:5 ;s 11‰!o"=J2 !/ J2p07p F Š > ' > ' 69 Š ' . ˆ69 9 69 69 69 b6Yr − = = ⇔ = ± = ± ⇒ = + − = − ≈ 1PL5 $7)p07p s T t ∆ = 1 &< s NO a v A ω ω + = f! t ∆ G ' N O NOv v v A ω + = = =j2"# s ;A cm = $:"5 $:5 $:"5 $:"5 $:5 235 C%:$DE FG!:5D HG!:5D 12l^ - ?"/.H.3=&R.!"# LCc πλ = ⇒ - N O -c L C C m λ π = + = j mCCLc ;-ON - =+= πλ ⇒ - - s 9- Y C C λ λ + = = + ⇒ ^ - ,-)k ⇒ ON-1s6Y ONs ˆ - H CCc L − = + = π λ 1K'HL_1 EG3!H_8H' ⇒ ^ ' ,α{ Pα,s9 - ^ ,1s9{NO Pα,- - ^ ,{1-NO =NONO ⇒ ,-N)kO,)k E^ ' ,α{-N)kONO W<!"#."/.λ ; G ON -; x CCLc += πλ ⇒ - ; - r 9 x C C C C λ λ + = = + ⇒ ^ ' ,rˆ69)k NOα{-,rˆ69 ⇒ α,ˆb6ˆ9 - $:"5 $:"5 $:5 $:5 $:"5 $:5 $:5 $:"5 230 C%:5DE !G":$D "G!:5D 11PP6!S3\& N€ {€ u O {€ l ,€ •,}N€ {s-O {€ l ,1r- € ,€ ,€ {€ l •,}€ {€ l ,-1- KL3)"UG!"#M7:!L € ,-E € l ,r-E ,}Z3..!8.‹, 11W$)! >? ! u N! u g)/O $:"5 $:"5 $:"5 $:"5 $:5 $:"5 i 9 |9 69 69 v ‰ Nl O Nl O 8 b 9 I a α 8 b 9 I a α ss 8 9 I ‹,€ l N€ u {€ O,,}‹,‹ € |‹ €u , Œs ,} s- .N sON O AM u c t V π π = − 1d4Jujl {•!M4H_3 -N O= = Ω C Z C ω 1 N O 1 N O -N O N O N O + − = + − = = + + − AB L C MB L C L C U r Z Z U I r Z Z V R r Z Z =44J€ l j€ u j€ \S!1,}u,j• l ,;<!F$ "# r- 1 N; -O - 9N O N; O N; -O + − = → = Ω + − r r r r r =.! - j 9 -69 N O L R Z L H π = Ω = Ω → = $:"5 $:"5 $:"5 $:"5 $:"5 $:5 236 C":$DE •g[GMŽ"Pl($Mw1W(•[G$" Pl•nMw0I@)"U6../& T8>?HNGeO1 ? !6<(H[G\ P1P7!•nMwG.e"# $(841•J!< <(H[GR@"PlC )2l•"$G.eG"#<7!<(HI\)2 "/GMw.e"#6X7!<(HI\)2$GMw.eJ tM"# •g"/>?,jP, P3..4.e"#'4J@F b a = µ . KL27!•nMw"#"#G[I•k0/H I.4"#5Mw(417!#)IHRIvHMw I•k4JXU(S7HMwG.e"#6X7!#) I43$(S7G.eJt1P<(HI [<G4H#)I.e:!a)HS7NGeO1P 1 b a mg mg P F tg ==== µ µ α NwG-69O $:"5 $:"5 $:"5 $:"5 $:5 $:5 J K4 !"#$%&'"(#$%!'")*+,-./012#$3 4-./15 6!"-785!9:!!'")";,<= !":'"1.>?@"< . ( Đề thi gồm có 02 trang) !" #"$!%&"$!' ()&* !+$,