DAO ĐỘNG ĐIỀU HOA

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 DAO ĐỘNG ĐIỀU HOA

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Bài tập dao động cơ hay - kèm đáp án

CHƯƠNG 1: DAO ĐỘNG ĐIỀU HOA 1. ĐẠI CƯƠNG DAO ĐỘNG ĐIỀU HÒA Câu 1: !"#$%&&'() *+,%-.//0 "1'(/2&3," 4"5'()*+6," 7"1'(/2&3)8," 9"5'()*+," Câu 2::;<"7%-//05'()*+=%,*+. /33>1-?8 "<@A 4"<@B 7"<@C 9"<@D Câu 3:E?8:>F  B G  H D π = π + G(*+8=(*+ H  "/0.E?8I?)8," 4"E?8I?>&JB8" 7";/D "  9"%,E?8&'()*+/B8@ " Câu 4(ĐH 2013):K:85L&JMA8"9IF*>/ "N8" 4"AD8" 7"C8" 9"MA8" Câu 5:E?8:F%/Dπ AπG8@ H"O%1'()*+" %-6/0E?8F/%/P "A8=." 4".=Dπ8@ 7"QA8=. 9".=QDπ8@ " Câu 6:;5/ M B8F%/ M MA8@ =;5/ A QC 8F%/ A MC8@ "<3 %,/ " M π RS" 4"TRS" 7"ATRS" 9" M A π RS" Câu 7(CĐ2013) : K:  M.x A t= G(*+ H"<&A = ,/ "M." 4"D. 7"A. 9"U Câu 8:>=A 3F2V6U65W -M8"4$&*3,/U8=,/ "M. GM.TH8" 4"U GUTH8" 7"M. GM.TXT@NH8" 9"U GM.TH8" Câu 9(CĐ2013):K:G'()*+1H*>D83 %M.RS"<&-?8.=F/D8"Y,/ "D GA.πZπH8" 4"D A.π8" 7"D GA.πX.=UπH8" 9"D GA.πZ.=UπH8" Câu 10:>3 %[DRS=*$&*3,/N8 FM@AD /&1&*3"Y,/ M "N N  GBTXT@CH8" 4"A N  GBTXT@CH8" 7"C GBTZT@CH8" 9"N A  GBTZT@NH8" Câu 11(ĐH 2013): K:*>U8=;A "<&-?8 .=5)*+"Y,/ "  U G  H A π = π − G8H 4"  U GA  H A π = π − G8H 7"  U GA  H A π = π + G8H 9"  U G  H A π = π + Câu 12:\F8:F*>;<=8%-G.H//01'(*>= ]*? )I/sai^ "_-<@B=65`-*+.=U"4"_-<@A=5`-*+A" 7"_-<@D=65`-*+"9"_-<=65`-*+D" Câu 13:K:*>U8%F/2&/M.π8@ "7; ,K/ "D " 4"A " 7"M " 9"N " Câu 14(ĐH 2013): K:*>D8;A "aW-6 D /P "B8 4"MC8 7"CD8 9"NA8 Câu 15: K:F*>=;<=1-?8*3  .1'( *>"aW-86b-?8*3$-?8<@D/ " @A" 4"A" 7"@D" 9"" Câu 16:=5'()*+*>;c<"<;` -<@D=5W-/E8F?6/ "" 4"N@A" 7"dN" 9"dA" Câu 17:e8f;FM@N-]'()*+;g5]M. 8"aW-/E8F?6M@C;/ "U8" 4"M.8" 7"A.8" 9"M. N 8" Câu 18:M02V6U.65W-/MC8" <(%**hE8F?&6;`-*+M=C ^ "MU8@ " 4"MB8@ " 7"A.8@ " 9"AU8@ " Câu 19(ĐH2008): E?8:  N  U  C π   = π +  ÷   G(*+8( *+)IH"<8)I3>b-?8.=E?85'(F/ZM8 "i/3" 4"C/3" 7"D/3" 9"U/3" Câu 20(ĐH 2011):E?8:D" G 2π 3 t HG(*+8j( *+ H"\?b.=E?85'(F/QA8/3eA.MM&-?8 "N.MU " 4"C.N. " 7"N.MC " 9"C.NM " A Câu 21( ĐH 2011): E?8:>"<-NM=D E?82V6M 3"O%-//0E?85'(F/A8)8%/ D. N 8@ " kEIπN=MD"Y,E?8/ "  C GA. H G8H C π = − 4"  D GA. H G8H N π = + 7"  D GA. H G8H N π = − 9"  C GA. H G8H C π = + Câu 22(ĐH 2009)::F/%2&/NM=D8@ "kEI N=MD π = "<%* ,8;/ "A.8@ 4"M.8@ 7"." 9"MU8@ " Câu 23(ĐH2012):E?8:;<"O <4 /%*,E?88 ;=/%e-,E?8"<8;=;`-8 D TB v v π ≥ / " C T 4" A N T 7" N T 9" A T Câu 24(ĐH 2010):E?8:;<"<;`-lE;b'(*> F/$'( A A− =E?8F%*/ " C " A T 4" m " A A T 7" N " A A T 9" D " A T Câu 25(ĐH 2013): K: DπG(*+ H"<(b.= ;`-lE?%,F/*+8n/%2&/ ".=.BN " 4".=MAU " 7".=M.D " 9".=MCi " Câu 26(ĐH2009)::F GωZϕH"O/3/6/%% ,"RVe0/P " A A A D A   + = ω ω " 4" A A A A A   + = ω ω 7" A A A A D   + = ω ω " 9" A A A A D    ω + = ω " Câu 27::*>%2& 8 "<3 %F,/ " 8 v A " 4" 8 v A π " 7" 8 A v A π " 9" 8 A v A " Câu 28 (ĐH 2011):E?8:>"\E?85'()*+%,F /A.8@ "\E?8F%/M.8@ %,FF//D. √ 3 8@ A "4>, E?8/ "U8" 4"D8" 7"M.8" 9"B8" (Tổng hợp dao động) N Câu 29:R:o=o3 %=F*>/3/6/D=U8C=.8j/V π "9p6,IF*>*+ "M=U8 4"i=U8" 7"U=.8" 9"M.=U8" Câu 30(ĐH 2013): R:o=o3 %F*>/3/6/ M B8= A MU8 /V A π "9p6,IF*>*+ "i8" 4"MM8" 7"Mi8" 9"AN8" Câu 31:7oF/3/6/ M NdN GUTZT@AHG8H  A NdN GUTQT@AHG8H"4>p6,>*+ ".8" 4"N8" 7"CdN8" 9"NdN8" Câu 32(ĐH2008):7:o=o3 %=o*>F]*3/ N π  C π − "Y*3,p6>*+ " A π − 4" D π " 7" C π " 9" MA π " Câu 33(ĐH 2009):7I?,8/p6,:o"RIF /3/6/ M  D GM. H D π = + G8H A N  N GM. H D π = − G8H"q/%,1'() *+/ "M 8@ " 4"U.8@ " 7"B.8@ " 9"M.8@ " Câu 34(ĐH2010): 9p6,:o=o3 %F/ U N G H C x t π π = − G8H"4$eEF/ M U G H C x t π π = + G8H"9eF // " A B G H C x t π π = + G8H" 4" A A G H C x t π π = + G8H" 7" A U A G H C x t π π = − G8H" 9" A U B G H C x t π π = − G8H" Câu 35(ĐH 2011):9,8E?8F;%/6M /p6,:o =F//3/6/MU M.AM. M.GMA(*+8=(*+ H"%$ r1'()*+"7r,E?8*+ ".=MMAUs" 4"AAUs" 7"MMA=Us" 9".=AAUs" Câu 36:7I?,8/p6,:o"RIF /3/6/ M N M.G8H A  D GM. H A t π + G8H"O%,F/2&*+ "i8@ A " 4"M8@ A " 7".=i8@ A " 9"U8@ A " D Câu 37 (ĐH2012): R      o    /3  /6  F       M    M  G H C A t π π + G8H     A   C G H A t π π − G8H"9p6,IF  G Hx A t π ϕ = + G8H"<Ip M  $;*>&]'2? " " C rad π ϕ = − 4" "rad ϕ π = 7" " N rad π ϕ = − 9" . "rad ϕ = Câu 38:R:]  "Y,]/3/6/  M  M  ωG8H A  A ωG8H"4$CD A M x ZNC A A x DB A G8 A H"<&-?8=eE5'(F/  M N8% M QMB8@ "\FeF%*+ "AD N 8@ " 4"AD8@ " 7"B8@ " 9"B N 8@ " 2. CON LẮC LÒ XO Câu 39:/l/:t8>*KF;%/68/:;%/6;g];?Fe;= Je&F%2/"\>*1'()*+=/:W8&ul" 7;c,/lI/ "ATdG@ulH 4"ATdGul@H 7"GM@ATHdG8@;H 9"GM@ATHdG;@8H Câu 40P/l/:t8F;%/68/:Fe;;gp="#$;% /68A ;,/l/A "q?;/l/M ;%/68*+ "A " 4"M " 7"U." 9"B " Câu 41(ĐH 2013): /l/:F;%/6K/ M 8 N = :;M "#$ IKF;%/68 M *+KF;%/68 A /l;.=U "O]'8 A *+ "M  4"MU. 7"AU 9"iU Câu 42(CDD2013):/l/:t8/:Fe;KF;%/6AU.= :+8G'()*+1H"v/QA8=KF%B8@ A "O]',;/ "MA.#@8" 4"A.#@8" 7"M #@8" 9"A #@8" Câu 43(ĐH 2012) : /l/:t8/:wFeM #@8K;%/68"7/l :;<"4$1-?8F/U8=1-?8Z D T F%U.8@ "O] ',8*+ ".=U; 4"M=A; 7".=B; 9"M=.; Câu 44(ĐH 2007):/l/:t8F;%/68/:Fe;=:"#$r e;/>A/3`8;%/68B/33 %, x "rA/3" 4"`8A/3" 7"`8D/3" 9"rD/3" Câu 45(CĐ 2009):/l/:Je:;.=D "\1'()*+=/: DD8"kEIπ A G8@ A H"72>,/:/ "NC8" 4"D.8" 7"DA8" 9"NB8" Câu 46:/:Fe;M#@8Je"k3/6F;%/6EN/3 ;)*+/:F/AA=U8Ai=U8"7M.8@ A "7;,/l; t-/ "T@N " 4"T@U " 7"T@D " 9"T@A " U Câu 47:/l/::*> A 8"yK,/lF;% /6M =/:FeM #@8"\KF% M. M. 8@ %,FF// "D8@ A " 4"M.8@ A " 7"A8@ A " 9"U8@ A " Câu 48(ĐH2008):/l/:t8/:FeA.#@8>*F;%/6.=A;:" <&-?8=%%,>*/3/6/A.8@  A N 8@ A "4>,>*/ "MC8" 4"D8" 7" D N 8" 9" M. N 8" Câu 49:/l/::*>C8;M "<&.=5'()*+ )8,&"<p5W-6,;`-A=NiU ;?b-?8 6/8%/  "DB8" 4"U.8" 7"UU=iC8" 9"DA8" Câu 50:/l/:Ge,/:/U.#@8H:"7e .=.U  z,/l/&]'()*+8;`{"kEIπ A M."\%/6z,/l*+ "AU." 4"M  7"AU" 9"U." Câu 51:/l/:Fz;%/68M /:Fe;M.#@8*> A8"<8f;=-8z1]'()*+/M8/ ".=NMD " 4".=DMm " 7".=ADA " 9".=DBB " Câu 52(ĐH2010):/l/::;<*>U8"4$8;=;`- ?K,/lF/%;g65]M 8@ A / N T "kEIπ A M."<3 %,/ "DRS" 4"NRS" 7"ARS" 9"MRS" Câu 53(ĐH2009)::8%'G8%$r1'()*+H "r,2&;%,F/2&" 4";b'()*+*>=%%,/goE" 7";1'()*+=$r,*+r" 9"$r,2&;1'(*>" Câu 54:\8: "/2;h]/>F/2&;1'()*+" 4"%,F/2&;1'()*+" 7"/2;h]/>F/|/V**>" 9"%,F/2&;1'()*+" Câu 55: \8:=I?,b'(*>'()*+/I? "3" 4"83" 7"3" 9"83" Câu 56(ĐH2010):k2;h]/>8E?8:F/ "|/V/,//g'()*+"4"|/V**>" 7";gpIp" 9";gp" Câu 57(ĐH2012): KF;%/6U :],8/2;hF*?e} Q.=B DG#H"9,F*>/ "C8 4"MA8 7"B8 9"M.8 Câu 58(CĐ 2013):K;%/6M =:*>D83 %URS"kEI π A M."k2;h]/>KF/2&*+ "B#" 4"C#" 7"D#" 9"A#" Câu 59(DH2011):\F8:=]*? )I ^ "k2;h]/>*$>:-" 4"qr,*$>3-" 7"y%,*$>:-" 9"7r,*$>3-" Câu 60(CĐ 2009):\Fr/6,8:=]*? )I/0^ "7e8f;,=F*%-?8$r*+r" C 4"<$r,&2&;1'()*+" 7"qr,&2&;1'(*>" 9"<$rr,*$>o3 %3 %,/" Câu 61(ĐH2008):7r,8: "*$>3-;c*+8n;c," 4"rEg;*>,rEg" 7"*+r,;'()*+" 9"*$>3-;c*+;c," Câu 62:\F8:=]*? )I0^ A. y%,p;F/2&" B. y%%,o;I?('()*+" C. y%,/g'()*+" D. y%%,o;I?'()*+" Câu 63(ĐH 2012):E?8:>"y%,E?8F "/2&1'(*>=/g*>" 4"/2?;5'()*+/go%" 7"/;gp=/g'()*+" 9"/|/V/,/=/g'()*+" Câu 64: :*>r~"%$r,1'()*+"\5 '(F/ A N r,/ " U m ~" 4" D m ~" 7" A m ~" 9" i m ~" Câu 65:/l/:t8zF;%/68A /:Fe;A.#@8 *>C8"y%,;5'(F$r*+N/3rF/ *+ ".=N8@ " 4"N8@ " 7".=MB8@ " 9"M=B8@ " Câu 66::+8;<='()*+8%$r1 %"<(b/0F//E=-?83>8r$r,*+/ " < D " 4" < B " 7" < MA " 9" < C " Câu 67(ĐH2007):K2V:M. GDTZT@AHG8H( *+)I"qr,F*$>;*+ "M=  " 4"M=U. " 7".=U. " 9".=AU " Câu 68(ĐH2009):/l/::"4$/:FeNC#@8KF;%/6M " kEIπ A M."qr,/l*$>-3 %" "CRS" 4"NRS" 7"MARS" 9"MRS" Câu 69(CĐ2010):/l/::3 % M A[ "qr,/l*$>3 -3 % A [ *+ " M A[ " 4" M [ A " 7" M [ " 9"D M [ " Câu 70(CĐ2013): KF;%/6M :;.=U π *>N8"7 8%$r&()*+=r,/ ".=NC8s 4".=iA8s 7".=MB8s 9".=DB8s Câu 71:/l/:t8>*K/:wFeM #@8=:*>.=M8"% $r1'()*+"\>*]'()*+C8r,/l*+ i ".=CDs" 4"N=A8s" 7"C=D8s" 9".=NAs" Câu 72:/l/:t8zF;%/68.=D;/:Fe;M #@8"\h ;K'()*+A8tI%3MU U T8@ "kEIT A M."#r/6, / "A=DUs" 4"ADUs" 7".=ADUs" 9"AD=Us" Câu 73(ĐH 2013):K;%/6M :;.=A r/.=MBsG8% $r&'()*+Hj/EI A M. π = "<&/ N A 8=| %r$r/ "N 4"D 7"A 9"M Câu 74::*>C8"%$r1'()*+"\Fr*+ N D /3 r]'()*+8&" "C8" 4"D=U8" 7"D8" 9"N8" Câu 75: :"%$r1'()*+"v-?8/%, *+U.•%2&| %€rr,/ " N D " 4" M " D 7" D " N 9" M " A Câu 76(ĐH2010):yK,8/l/::=8%$r&'()*+" \%,F/*+8n/%2&| %€r$r,/ A" A M " B"N" C"A" D" N M " Câu 77: /l/:t88K/:wFeM #@8"7/l:    G• H" = +ϕ %$r&'()*+"\`-€/3/>$ /lFr*+$r/.=M "kEI A M.π = "\%/6K*+ "D " 4"D." 7"A " 9"M " Câu 78(ĐH 2009):/l/:t8/:wK:3 %FM. @ "4$+;r$rG8%1'()*+,H*+%,F/*+ .=C8@ "4>,/l/ "C8 4" C A 8 7"MA8 9" MA A 8 Câu 79:7E?8F;%/68 M U.85'()*+,F  M  GUTZT@CHG8H"7E?8F;%/68 A M 85'()*+,F  A U GTXT@CHG8H"<| %r5],E?88 M   E?88 A *+ "M@A" 4"A" 7"M" 9"M@U" Câu 80 (ĐH2011):E?8:>*>M.8=;A "%$r1'( )*+"<%*,E?8;`-lE;E?8b'(Fr*+ N/3$r$'(Fr*+M@N/3$r/ "AC=MA8@ " 4"i=NA8@ " 7"MD=CD8@ " 9"AM=mC8@ " Câu 81(ĐH2009):/l/:F;%/6K/U."7/l:8%' +8 ω"7e €;`-.=.U r$r,/& *+"kEIπ A M."k:,/lFe*+ "U.#@8" 4"M #@8" 7"AU#@8" 9"A #@8" Câu 82: 7/l/:t88KF;%/6AU./:wFeM #@8: *>D8"\`-lE?%,F]'bQD.8@ $D. N 8@ / B " D. π " 4" MA. π " 7" A. π " 9" C. π " Câu 83:/l/::Je"72>,/:/‚ . N. 8=5]/:*$>bNA8$NB8"kEIM.8@ A "y%2& ,z/ "C. A 8@ " 4"N. A 8@ " 7"N.8@ " 9"C.8@ " Câu 84:/l/:t8/:Fe;M #@8=zF;%/68M ]% '"7/l*>A A 8Je"kEIM.8@ A = π A M."<& '(/:WN8%,F// "A.T8@ " 4"AT8@ " 7"A.T8@ " 9"M.T8@ " Câu 85:7/l/:Je=:A GA.H8"72> ,/:// . N.8=/EIM.8@ A "7KE/E,/:5]/3 /6/ "AB=U8NN8" 4"NM8NC8" 7"N.=U8ND=U8" 9"NA8ND8" Câu 86:/l/:Je=/:F;%/6;g];?F eD.#@8=zF;%/6A "\hb'()*+%8&U8t*g w"kEIM.8@ A "O]'2&=2?,/2t]' )I^ "D#jA#" 4"D#j.#" 7"A#j.#" 9"A#jM=A#" Câu 87:7/l/:JeFe;B.#@8=z;%/68A  Je*>U8=/EIM.8@ A "<8;c<=-/:W/ " MU π  " 4" N. π  " 7" MA π  " 9" AD π  " Câu 88(CĐ2013):/l/:6Je&F%-"\K1'( )*+=/:WD8"\hKJe%$]'()*+D A 8t`w G;g%*3H?/l:"kEIπ A M."<8;=-/:;gW / ".=.U " 4".=MN " 7".=A. " 9".=M. " Câu 89(ĐH2008):/l/:Je"\((/l:J e"7;*>,/l/3/6/.=D B8"7ƒJe %=%&'()*+=%-.;5'()*+"kEI%2 M.8@ A π A M."<-lE;„b;.$;/2t,/:F/2?/ " D MU " 4" i N. " 7" N M. 9" M N. " Câu 90:/l/:Je6;((:"<-5`3b'( E$'(EE/.=A | %€/,/2t/:/6,z;F 1'(EE/i@D"kEIT A 8@ A "4>,/l/ "U8" 4"D8" 7"N8" 9"A8" Câu 91(ĐH 2012):/l/::r/Ms/2t 2&/M.#"%$r&'()*+"Oa/3%',/:=;`-lE€A/3 />$a']/2;h,/:F/ U N #/.=M "aW-/E8K,/l 6.=D / m "D.8" 4"C.8" 7"B.8" 9"MMU8 Câu 92(ĐH 2012):RE?8#Fo;%/6=:o3 %-J  ;  "y'()*+,,#1>8-J5F gF"4>,/C8=,#/B8"<5]=;`]/E€ #/M.8"%$r&'()*+"v-?88Fr*+$r=| % r,r,#/ " D N " 4" N D " 7" m MC " 9" MC m " Câu 93(ĐH 2013):O=#=…/]?8>8/:w=6Je1?8%'"\/: F2>##…M.8"OlK3…,/:;((? :Je"<5]=| %//2;h/E/ /2;hKE]/>*+Nj/:Wj;`]/E€?8#/MA8" kEIπ A M."y3 %/ "A=mRS" 4"N=URS" 7"M=iRS" 9"A=URS" 3. CON LẮC ĐƠN Câu 94P\8/l/>JeG,/l;gpH3 % ,F x "`8%-`8" 4"r;c,F`8" 7"r3 %,F|/V'%-" 9";gp;c,F;g%- Câu 95(ĐH2008):Y]*? )I/sai;F,/lG*K5/2`,8g-H^ "\z1'(*>=r,/l*+$r,F" 4"7I?,/lb'(*>'()*+/3" 7"\z5'()*+=/2]/>F)*+/2r,)I" 9"yK,/l/:" Câu 96(ĐH 2013):/lFMAM8=:&F%-" kEI A M. π = "7;,/l/P "M 4".=U 7"A=A 9"A Câu 97:<&8'(><]qE=/lF M l :;< M j/lF  A l G A l † M l H:;< A "7{&'(F=/lF M l Q A l  :;/ " M A M A T T T T+ " 4" A A M A T T− " 7" M A M A T T T T− 9" A A M A T T+ " Câu 98:R/l:&o8'(><]qE"7;,/l /3/6/ M l = A l < M =< A "4$ A M M A T T = "RVe0/ A. M A A= l l  B. M A D= l l C. M A M D = l l D. M A M A = l l M.

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