2023山东版物理高考第二轮复习--专题二 相互作用

《2023山东版物理高考第二轮复习--专题二 相互作用》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

2023
᱐ᱥᳮὃ⚪ᵨஹ⌱⚪1.2022,5᩟ᙠ!,"ᵨ᝞$ᡠ&Ḅ(᧕*+,-ᩭ/01ᩞᧇ஺ᐝ66ᵨ789:;<Ḅ=>?ᩚABᙠCDEḄ0'F,GHIJKḄLMNO,ᵬQᙠᙢ☢E78B6T᠒VWLMXFA,Yᩞᧇ=>Eᓣᑮ\]⚔_`,Iaᙠ]⚔bVḼBCLd1ᩞᧇT᠒eᑮ]⚔fE஺᦮h8iKᵬḄj->kWlmᑡopqrḄsஹt⌱⚪A.ᩞᧇ=>Eᓣ8iK,?ᩚ'EḄuBv=>wᔣB.IeW1ᩞᧇḄ8iKlᵬyLḄVuzᢝk|C.IeW1ᩞᧇḄ8iKlIyBCLḄVuᜧ~k|D.IeW1ᩞᧇḄ8iK,ᵬyᙢ☢Ḅ᥅u⌲ᜧᫀDᩞᧇ=>Eᓣ8iKlB6Ẇy,ᵫB6ᵬLM0AVuᙠbᔣḄᑖu,᪷u⊝,?ᩚ0'y6ḄᵨuBᨵbᔣḄᑖu,ᦑ?ᩚ'EḄukv=>wᔣ,A⌱⚗┯;IeW1ᩞᧇḄ8iKl6ILM0C=>wᔣḄᜳ¡9⌲|ᜧlCFyl᪷u⊝¢£=ᘤ,T*=mgtan0,¦Ḽ0Ḅᜧ,T,“ᜧ,£ᜧ,ᦑᵬyLḄVuᜧlIyBCLḄVuᜧ,BஹC⌱⚗┯;IeW1ᩞᧇḄ8iK,yᵬuᑖ᪆,ᵫu⊝,ᙢ☢yᵬḄ᥅uᜧ~¨LM0AyᵬḄVuᙠbwᔣḄᑖu,ᵫ0ALyᵬḄ

1Vuᜧ,ªALbwᔣᜳ¡k|,¢ᙢ☢yᵬḄ᥅u⌲ᜧ,᪷«¬B®¢lᵬyᙢ☢Ḅ᥅u⌲ᜧ,D⌱⚗qr஺2.ᱥᳮ¯°2022ᓭG,5²³´usµ¶·ᳫ0Wᕒº⌕Ḅ¼½¾¿ᢣ᪗_,ÂÃ℉ÅḄ·ᳫ0WᕒÆᐹᨵÈÉḄ²³´uÊËᳫÌÍ“²ÏÉ”஺²³8is¼½ÑᾙஹÓÔᐵ⁚¨×jØᑡᐵWḄ8i,ÙÚsᐸKḄhᐵÜW஺ÝdÉÙÚ!ḄÞ᛻(ᓄ᝞$ᡠ&á,âÉÙÚmãäÚᐵ⁚åæḄ¡ç9!lᜧஹ~è×ḄÑéyÚᐵ⁚ḄᵨuFḄwᔣbᔣ`lªᜧèÓஹ~èÓyÚᐵ⁚Ḅᵨuᜧê¨lᑣìíᡠᙢ☢=>ᔣEḄ²uᫀAâᜧèÓ~èÓyÚᐵ⁚Ḅᵨuᜧ~î,ïðñ_òḄᜳ¡0,FðñḄᔠuḄᜧ~lôõö÷ø᝞$ᡠ&lᨵRcosùlᑣìíyᙢ☢=>ᔣmḄúuFûFisin*ᵫ«¬B®ìíᡠᙢ☢=>ᔣEḄ²utanpᦑ⌱A஺3.ᱥᳮ¯°12022ᜩÿ▤
ḼᓅᝍḄᡂ⚗ᜓḄ᰿஺᝞ᡠ!"ᙶᙠ%!Ḅ&'(,ᐜ+,-.%!Ḅ/0⍝!234ᵫ☟789ᔜ&';⍝<Ḅ=᥅?@ᦪᙳ%!CDEFGH஺⍝(Ḅ!"I

2A.ᙠK⍝98LMNᙳOᒴQ0RS=B.ᙠ98LMNTUḄVWXᙳYឤC.ᙠ!2⍝(ᜧ\]+Ḅ<^_

3eᫀcmÀËᑖ᪆,¥ÈmÀËḄÉHÅ2m/⊝HᜧÑ%¤oᔣ%pᦑA┯k;m¥È᦮ᑖ᪆,Ø᦮±ᯠᔣÆÇḄ2oÚ=_,ÆÇ2oᑮḄ☟᥅?HᜧÛ2oᑮḄ☟᥅?H,ᦑB┯k;¸o%ᢝ_,S=ᕒᦋÝ»;ᙢ☢<Ḅᜳ.,mHᑖ᪆,Þ0oᔣᨵN=mg,ᡠsßᢝHNCÝ,ᵫàáâãä,S=ᕒ;ᙢ☢<ḄÔHCÝ,D┯k;¸o%ᢝ_,S=ᕒᑮᙢ☢ḄßᢝHCÝᙠå/oᔣᨵf=T,ÀËÉHTtæᜧ,☟᥅?Hfaᜧ,ᑣ☟᥅?HçßᢝHḄᔠHaᜧ,ᓽᙢ☢mS=ᕒḄqᵨHaᜧ,ᦑC஺5.ᱥᳮëìI2022í᫥ïð2022ñ᧡óôõö÷ø☘úû⊤ýN,◤⌕ὅᑖ,,ᙢ☢,ᙠὅ᠒Ḅ,!ᑡ#$%&'Ḅ()*A.+,ᙢ☢Ḅ-./ᙢ☢,+Ḅ0ᢝ.(2,⊝.B.ὅᡠ5Ḅ0ᢝ.6789ὅḄ:.C.ὅ;ᔣ!:=;>D.ὅ?@Aᜧ,!CD;EFGᫀA+,ᙢ☢Ḅ-./ᙢ☢,+Ḅ0ᢝ.(2,Iᵨ.KIᵨ.⌱⚗A┯O;ὅ᠒QRS2DTU(⊝V᝱,ᑣὅᡠ5Ḅ0ᢝ.6789ὅḄ:.,⌱⚗B&';ὅ;ᔣ!᦮Z[Ḅ:=;>,⌱⚗C&';ὅ?\;ᜧ,:=;ᔣ!,!CD;EF,⌱⚗D&'஺6.ᱥᳮab12022cᓅe᪥ὶhij*᝞lᵬᡠn2⁂p&⌮st஺lu(p⌮stḄvᓫ5.ᑖ᪆ls.F=lrNஹzᔣp☢Ḅᜳ|0=30°,}ᔣp☢Ḅᜳ|~0=30஺&s.ᙠᚖp☢zᔣḄᑖ.p⌮stᑣs.Fᙠ}ᔣzᔣḄᑖ.

4ᵬMlllll/)ᔣ+ᙠᚖ./☢1ᔣḄᑖ45A.5.0X10'NB.2.5X10'NC.2X10'ND.10'NGᫀBs.FᙠḼp☢/ᚖp☢Ḅzᔣᑖsᙠᚖp☢zᔣḄᑖ.Fஹ=Fsin0,sᙠᚖp☢zᔣḄᑖ.FஹᙠḼ}ᔣ/ᚖ}ᔣḄzᔣᑖ,s.Fᙠ}ᔣzᔣḄᑖ.F஺A(FஹḼ}ᔣzᔣḄᑖ.,FRsin6,ᔠQFo=Fsin2஺ᐭᦪF°=2.5X10,N,⌱⚗B&'஺7.ᱥᳮab12022ᑁℳij*“V”ᙠ8ᙢᨵ:⌕ḄIᵨ஺᝞lᡠn,00,0A“V”Ḅ¡,0A¢Aᜐ¤FᨵF¥¦,0Bbᩚ¨“V”Ḅ©¡2᪷«¬®B¯2᪷«¬®B°F¥¦Ḽ2±²MḄ:ᱥ,:ᱥ☟´஺µ¶¡0A·☢Ḅᜳ|a,¡OA«¬AB¸Ḅᜳ|0,¨¡0A©¡OB¹ºᚖ,¡0A/©¡0B»±²m,«¬±²¼ᶍ%¾%¾2ᑗ᥅Á,:.ÂÃÄg.ᑣ!ᑡ#$&'Ḅ(F-2a+28)A.F¥¦,«¬Ḅ0ᢝ.2Mg•cosB.AB¸«¬ᡠ5ᑮḄÆ.2MgC.©¡0B,«¬Ḅ0ᢝ.Mgcosg+esma

5D.,¡0Aஹ©¡Bஹ:ᱥ᦮[Ḅ0ᢝ.M+mgGᫀA᝞l1ᡠn,Ç:ᱥᡠᙠÈÉCᑣAÊ«¬Ḅᜳ|NCAB=90°-a+9=ËÌF¥¦ÍᦋÏ«¬Æ.Ḅzᔣ,%ᦋÏÆ.ḄᜧÐ,ᑣ«¬,F¥¦ḄIᵨ.zᔣḼNCABḄ|ᑖÑ:ᱥ☟´ᑣAÊ«¬Æ.ᙳÓᑣFᔠ=2Mgcos)ËÌ*,ᵫÕÖ×ØFÙQ¶F¥¦,«¬ḄIᵨ.Fᔠ'=2Mgcos)Ë2ᦑA&',B┯O;BẆÝ,Þ,5.ᑖ᪆᝞l2ᡠn,xzᔣᵫ⊝ᩩàMgcosa-9=Fsina,FEgá2ᦑC┯O;¡0Aஹ©¡0Bஹ:lsinaᱥ᦮[ẆÝ,Þ©Ê«¬,᦮[ᨵᔣ!ḄÆ.F,ᑣ,᦮[Ḅ0ᢝ.ᜧ9M+mg,ᦑD┯O஺8.ᱥᳮab12022cᓭᜧὶὃi*᝞lᡠn(äᵨḄᓟæ⚔,᤯éêD,ëìíîïᓟæ⚔Ḅ¡☠ñòóô:ᱥ⚔õ஺ᑭᵨZ¹÷Ḅᓟæ⚔ᑖø⚔õ±²ùஹm&Ḅ:ᱥ⚔õúz¡û?Ḅᜳ|ᑖø120஺ஹ106஺DZᓟæ⚔¡ḄIᵨ.ᜧй8஺µ¶sin53஺=0.8,cos53°=0.6,ᑣmüý)A.5C3B.5C4C.5C6D.3C4

6GᫀcᎷÇÿ

ᵨᜧᙳF,᪷Ḅᑣ2Fcos60°=mig,2Fcos53°=ni2g,Cm=5:6,⌱⚗C!"஺29.ᱥᳮ'(2022)*ᔠ,-./0123ᵬᢞᙠ789Ḅ:;<⊟>஺9ஹ@>8AᐰCDEᢝGHI>8ᵫI0ᙢᙳᒴḄᙊNᙌPQRS᪀ᡂ,>WX᪷YḄZ[\NᙌḄᑖ^_9>Nᙌᵨ`᜜᪷YZ[bᙠᢞc9஺<⊟>Ḅᨵᐵfg᝞3iᡠk,ᑣ3ᵬ9ஹ@ᔜm᪷[ḄnᜧopA.1C1B.2C1C.5C2D.5C4qᫀCsmI>8Ḅ0tm,_u@>ḄH᪷[8Ḅv”,x@>᪷⊝ᩩ{4T2=mg,4=~,s_u9>ḄH᪷[8Ḅv[8\ᔣᜳ9,xI>᦮ᵫ⊝ᩩ{4Tleos©=2mg,᪷ᐵbsin஺4=0.6,ὶTi=|mg,ᑣ?ᦑC!"஺4-Uo/2N10.2022Ymᨴὃ,5᝞3ᡠkᓟ⚔Ḅ☢3஺᪷YḄᢝᵨᐝ_u,WXG¡¢£¤MஹN¥Ḅ¦§,¨©ª«ᱥ஺Eᢝ«ᱥ¬,MP®PNᜳ120஺N^

7¯ᑮ¡¢£Ḅ
ᵨF,;MP®PNᜳ60஺N^¯ᑮ¡¢£Ḅ
ᵨf<¬±ᢝ®¡¢£0Ḅ«ᑣR\²ᜧop³KLA.1C1B.1C3C.V3´1D.3´1qᫀDµ¥Ḅᜳ120஺¯ᑮḄ¶N·ᔆ/=M,xN^ᑖ᪆,N^¯ᑮ¡¢£Ḅ2cos60
ᵨF,=2Mcos30஺=gG;µ¥Ḅᜳ60஺¯ᑮḄ¶Nº»om=\¼,xN^ᑖ2cos3஺3᪆,N^¯ᑮ¡¢£Ḅ
ᵨ&=24COS600ὃG,ᑣᨵ%CF=3C1,ᦑAஹBஹC┯À,D!"஺211.2022YYÁÂᨴὃ,4ᢞÃÄḄÅÆÇÈÉÊËÌÍᡂÎÏÐÑḄÒÓ஺᝞3ᡠk,ᵫÔ᪷YḄZ0Õ[ÖᢞÇI0tḄÃÄ,¥ḄÕ[×GḄ,`᜜᪷Õ[\G☢ᡠᡂḄØᑖÙk®஺2஺@ᑡᐵb!"Ḅ׳2AT-2mgDT_mgn.1OA~7.......-D.l,wPCPT-tan0ismO2C.?Bc=2mgtan01D.sin஺i=2sin஺2qᫀBᵫÔ᪷YḄZ0Õ[ÖᢞÇI0tḄÃįÛWxB^¯ᑖ᪆ᨵTM,cos92=TIK,TABsin02=mg,ÜÝÞ=ß,ᦑB!";xA¯ᑖ᪆,ᵫ⊝ᩩ{ᨵT஺,ஹcos஺FTABCOSsin©2tan6?02,Tsin0^mg+T.wsin02,Utan0Ü2tan஺2,■ᦑAஹCஹD1Msm஺1sinJ௃cos6?tan┯À஺

812.ᱥᳮ'(2022ãäå᪥ὶὃ³3mçè┑êmnA4ëì“ᔾ”ᙠ☟Ḅèឋëñ9஺è┑\ìòóᜐÉ☟õö᝱஺@ᑡøù!"Ḅ׳2A.A4ì¯ÔIB.A4ìxëñḄ᥅ûᔣ9C.A4ìḄ«\ëñxüḄ᥅û×mx⊝D.è┑xëñḄᔾý\ëñxè┑Ḅᔾý×mx⊝qᫀAì¯ᑮ«ஹè┑®ëñxüḄ!¶ஹè┑®ëñxüḄ᥅ûᐳ5I
ᵨ,ᦑA!";ëñxìḄ᥅ûᔣᔣ9,ᵫÿ
Ḅ᥅ᔣᔣ,ᦑB┯;ᙠᔣᑮ┑Ḅ᥅!"⊝,ᦑḄ᥅$%&'"⊝,ᦑC┯;┑Ḅᔾ)┑Ḅᔾ)&'*ᵨ,*ᵨ,ᦑD┯஺13.ᱥᳮ0120222345ὃὶᔠ9:,2᝞<ᡠ>?@ABCḼEGḄFG☟IJK,FGLMNO☢QE"☢,RSᢝUVWXYZ%[,\UV]^'@_,᝞<`abᡠ>஺cᶍFGLMeḄ᥅?ᐵgUV]^h,ᑡjklmḄ&UUA.UVFGḄn[ᜧB.UVFGḄn[@C.@AῪrFGḄsᢝ[@D.@AῪrFGḄsᢝᜧ@%[tᫀAFGvwᑖ᪆᝞<ᡠ>

9ᵫ"⊝ᩩ}~?GῪrFGḄsᢝFஹḄᔠᜧ@gnT,᪷ᐵ~T=ᯅ,FhGtan0,UV]^h஺[ᜧ?ᡠTRᙳ[ᜧ?ᦑAlm,BஹCஹD┯஺14.ᱥᳮ01I202223ᙥ',3᝞<ᡠ>,XV\ᙢᢞᙠ⊟᧼஺᪷XVB,AᜐXV⊟Ḅᜳ0>90஺?ᑣA.⊟Ḅ*ᵨᜧgḄB.᪷XVḄngḄ'£C.AᜐXVᡠḄ☟᥅@gXVḄnD.AᜐXVᡠsᢝgXVḄnᜧ@tᫀCᜐg"⊝¤᝱?⊟Ḅ*ᵨḄᜧ,ᔣ,A┯;ᵫg᪷XVnḄᔣ¦%&ᔣ,᪷Ḅᔠᡂᑖ¨?᪷XVḄn¦ᜧgḄ'£,B┯;᝞<ᡠ>?ᙠAᜐ,XVᡠ☟᥅sᢝḄᔠgXVn,!☟᥅sᢝ©ªᚖ?ᡠAᜐXVᡠḄ☟᥅sᢝᙳ@gXVḄnᜧ@,Clm,D┯஺

1015.ᱥᳮ01W202223¬᪥ὶᔠMὶὃ()?3X᝞<,ᵨᵬஹ±᪷²ᜳ'³@ᳫ,ᵬB?±µ¶,ᙠ"☢ᑁ?ᵬᔣḄᜳE0,%¸᥅?¹Ḽ0º᠒¼@?@ᳫµ¶Sᢝ☟I?ᑣ()A.²ᵬ@ᳫḄ½[@B.²±@ᳫḄ½%[C.᪷²@ᳫḄ½ᙳ¾ᜧD.᪷²@ᳫḄᔠ\¾ᜧtᫀCᑖ᪆@ᳫ¿À?᝞<ᡠ>?᪷"⊝ᩩ}▲cos9=FX„Fsin9=mg,¨N2FஹÂÃ,¬Ä,ᑣ¹Ḽ6¼@,ÅஹF”¦ᙠ¾ᜧᦑAஹB┯,Clm;ᵫg@ᳫᜐg☟I¤᝱,ᑮḄtan஺sin0ᔠ'EÇ?ᦑD┯஺kᢈÉÊᵨ¨᪆k¨ËÌ᝱"⊝Ḅ¨⚪ÎÏ(1)ᑡ"⊝ÐÑÒÓÔÕÔḄᐵ⊤×ØM(2)᪷ÕÔḄ[ᓄ¿ÀᩭmÓÔḄ[ᓄ¿À஺16.ᱥᳮÛ(2022ÜÝÞß`àá,8)4ᶢ&ᡃäᨬᜧḄÂæç,èÌéæêëìᙠé᤺æîḄïð\æîᡭᒹᡂᙊôæᒹ,õöéæêh÷~øùḄs"úᙢ\ᐸü஺üæᒹḄöÐ~ýᓄE᝞<ᡠ>Û,ÔEmḄæᒹüᙠ“V”ᢱ,eᜳE120஺ÿ
“V”ᢱ

11Pᙠ☢ᑁ,ᙠBPᵫ⌮┐᠒60°Ḅ!,"ᶍ“V”ᢱ$%ᒹḄ᥅()*+,)-./0g,1ᑡ3456Ḅ7A.8BP30஺,%ᒹ$APḄ:ᵨ)ᜧ=0বgB.8BP30°,%ᒹ$APḄ:ᵨ)ᜧ=0mgC.8BP60஺,%ᒹ?ᑮAB)Ḅ:ᵨD.%ᒹ$APḄC)ᐜEᜧFG=HᫀABPJBK/Ḅ%ᒹ?)᝞MᡠOPBPQ%ᒹḄRᢝ)0FB,APQ%ᒹḄRᢝ)0FA,ᔠ)0F,᪷V⊝ᩩY+F=mg8BP30°&N2=30°,/3=120°᪷V5Zᳮ\Fஹ=_`J=absinlzO3᪷VcdeAf+,%ᒹ$APḄ:ᵨ)ᜧ=0gmg,ᦑA56,B┯i;8BP60°,APᜐl,
m᥅(,%ᒹn?ᑮ,)oAPḄRᢝ),BPpᯠrstu,vwᨵy),ᡠz?{B)Ḅ:ᵨᦑC┯i;ᵫ*+ᩩY+/3=120஺ᡠz/1+/2=60°,᪷V5Zᳮ\J||8|3}~0=-^ᡠz7JBᦪ஺3ᱏᦪᙠB!/20஺Eᜧᑮ60°,ᡠzF,ஹ⌲E-,᪷VcdeAf+%ᒹ$APḄC)⌲Eᜧ,ᦑD┯i஺17.ᱥᳮ2022⊞|,6᝞Mᵬ5ᵨ“ᧇ”Qᜋᑵᧇ஺᝞M¡ᑵ¢ᢝᥛᩚᧇ¥ᜋ᠒¦,§ᧇᙠᔣ©᠒¦!$ᜋḄC)ᜧ=ªᢝ
ᑣ¬

12A.ᧇ?ᑮḄ᥅()®ᔣᔣ©,ᜧ=
B.ᧇ?ᑮḄ᥅()®ᔣᔣ©,ᜧ=ᜧC.ᧇ?ᑮḄ᥅()®ᔣᔣ1ᜧ=ᜧD.ᧇ?ᑮḄ᥅()®ᔣᔣ1ᜧ==HᫀCᵫ⚪°+¢ᢝᥛᩚᧇ¥ᜋ᠒¦ᧇ±$lᜋᨵᔣ©²Ḅ³´ᡠzᧇ?ᑮḄ᥅()®ᔣᔣ1,µᧇ®ᔣ?)⊝ᨵ4:mg+f,ᐸ!a0ᥛᩚrᜋḄᜳKaKG=᥅()ᜧᦑC56,AஹBஹD┯i஺18.20229+1º!ὶ¼½!,6=᧕¿ÀÁÂJÃÄÅ¥ᜋK²Ḅ᯿ᱏ,1ᑡ34!56Ḅ7¬A.ÄÅ-.©Çᡠ?Ḅ᥅()ᜧlᒴ.©Çᡠ?Ḅ᥅()B.ÄÅ⌱ÊᜋK©Ç,7~0ᜋK±$ËÌÍC.ᎷPÄÅᒴ.ᔣ1²Ï$ᜋḄC)Ðᜧᡠ?᥅()bÐᜧ

13D.ÄÅᔣ1Ç,?ᑮᔣ©ḄÑ᥅()HᫀA᪷Vcde|f\ÄÅᡠ?Ḅ᥅()ᜧ=0f=ma+mg,ᡠzÄÅ-.©Çᡠ?Ḅ᥅()ᜧlᒴ.©Çᡠ?Ḅ᥅(),A56;ÄÅ⌱ÊᜋK©Ç7~0ᜋKᕈK,ÄÅᓽÔÕᙢ☢ᐸ{×Ø$ᜋ☢Ù-C)Ḅ¿,{☢ᜋbz$ÄÅÙ-Rᢝ)o᥅(),ÚÄÅᙠᓫ☢ᜋ©ᑣÜ4©Ç,B┯i;ᎷPÄÅᒴ.ᔣ1²ᑣ᥅()r,)⊝,rÏ$ᜋḄC)wᨵᐵÞ,C┯i;ÄÅᔣ1Ç,?ᑮ☟᥅(),D┯i஺19.ᱥᳮ2022àᓭâᨴὃ,2᝞MᵬᡠO,10Bᵨ20᪷åæḄçèéêJBëJìÞᙠë©Jìᵨ¢éí,î᪷çèr®ᔣḄᜳKᙳ±å§çèðtëḄñòஹéçèḄ¢ᑖôᙠᐸᡠᙠᙊᕜ©ᙳå÷øᑖùëᜐl☟úû᝱µë☢,"ᶍçèýþ,ÿᓄ
᝞
ᡠ஺ᙠḄᵨᢝ☢ᔣ᠒Ḅ!"#$,ᐸ'ᩩ)#$,ᑣᙠ᠒+,-,ᑡ/012Ḅ34A.5Ḅᔠ7$ᜧB.5Ḅᔠ7$9C.:᪷5<Ḅᵨ7=ᜧD.:᪷5<Ḅᵨ7>9

14@ᫀD᠒,ᜐCD᝱⊝5Ḅᔠ7GCḄH7ᔠ7#$,AஹB┯K;᪷M⊝ᩩ)N20Fcos0=mg,ONP=R᠒+,-SᔣḄᜳU0$9cos0$ᜧ,F>9,C┯K,D12஺O⚪ᢣX5CYZ[\ᑁᱥ_Ḅ`7ᑖ᪆#cdஹefᨵh⌕djᐰlḄ`7ᑖ᪆
m⌕n+[\opᢕrO⚪Ḅ᪷s,n+1tᑖOḄ0,uᑮ`7⊝Ḅᐵxy஺20.ᱥᳮ|}2022~ᜧ᫑-Ẇ,3“ᜳᴻ”஺᝞
ᡠᜳᴻ,SᔣḄᜳU0┦U,ᙠ☢ᑁ஺ᢝᴻ☟ᶍSᴻ\Ḅ᥅£஺ᑡ/012Ḅ34¤A.5ᴻḄᔠ7¥H7ᜧB.5ᴻḄᔠ7¥H79C.5ᴻḄ¦7§¥ᴻḄH7ᜧD.5ᴻḄ¦7§¥ᴻᳫḄH7ᜧ@ᫀC5ᴻ`7ᑖ᪆᝞
ᡠ஺ᴻᳫ`ᑮH74©ஹ5ᴻḄ¦7ªஹ5ᴻḄ¦7ᔛᙠY¬7ḄᵨᜐC⊝᝱஺᪷M7Ḅ⊝®¯,5ᴻḄᔠ7SH7Gᜧ°ᔣᦑAஹB┯K஺᪷M7Ḅ⊝ᩩ)ᔣᨵRsin9=Gᔣᨵcos0,ὶ³NFi=-^-,Fz=Gcot9,ᵫC09C90°,ᑣ§ᨵFi>G,µF?#§ᜧCG,ᦑC12,D┯K஺21.ᱥᳮ¶ᢈI2022~¸¹,2º-20ᡊᧅ½¾¿ÀᡃÂÃÄẆᑴḄÆÇÈD½,ÉÊᙠ#ᦋ$̽ÌÍᔣḄÎÏ,n+ÐDÑÒÓᔣᦋ$Ô7Ḅᔣᡊᧅ½ÕNÖ×ØÙḄÌÍឋÉ஺Û¯

15ᙠº-20ᡊᧅ½ᔣÜÝÞᒴÞàáâᓣä¥4ᚖ½æᔣçḄᓣ7èͽæᔣḄä7饤
஺̽ḄH74©,̽ê⁚ìàá¹yḄᨬ9Ô734A"B.]^_@ᫀI̽`ᑮH74©ஹÈD½Ô73ஹᓣ7⎃è[ïä7fᵨ,H7Ḅᔣᔣᓣ7F2Ḅᔣᔣç,[ïä7fḄᔣSF,ᚖ᝞
ᡠ஺º-20ᡊᧅ½ᔣÜÝÞᒴÞàá,ᑣᔣK=f,ᔣB+FPG,ᐸ-I*f,ONF=G-V15f,ᑣFi2=42+&2=]6f2_2«^Gf+G2,ðñN¯F/⊤óyôÓᔣç,5õöf=^pGḄ÷ᱥtø,ᓽúfûGâFCüNᨬ9ý,þfḄüýÿᐭFj⊤F,ᦑ⌱D஺~~~~7⚪⚪ᵨᩭ஺ᡠᓣ!"#$%!&'()ᑣ+,!Ḅᔠ!F/0ᔣ23,,!ᔠ!50ᔣḄᜳ078tan஺=:;"0ᔣᙳ@AB+᪀D᝞FᡠGH!ᨬ>JFH5F/ᚖᑣᨵFH,,,MGsin0ᦑ⌱I஺F
22.2022NᓭP᪥ὶSTUὶὃ,11᝞FᡠG,WXY>Z[\ᑭᵨDISXY^_Ẇabcd!Ḅᑖ,AஹB(ghi[Ḅjᔣ!klᘤnopklᘤᙠᑮs!Jtᦪ(vᑮw!Jtᦪ(x஺A

16z{|@}Ḅ~23Ḅᙊ஺B23@ᐝz{(0.3mḄᩚ஺~z{ᙠᩚ᪀ᡂbc஺ᢝᩚᙠ#$0ᔣ,ᢥ᝞জ5#$ᩚḄᜳZA0B=0ঝ¢ghklᘤ£¤¥¦ঞᵨ¨᪷ᙠªᢞh¬ṹ,®¯ghklᘤḄtᦪট±¬ṹklᘤAᦋA0<³d´XYᑮ⊤µ஺F1.0010.580•••1.002•••F-0.868-0.2910.8652930°60°150°.প᪷B⊤µ,Aklᘤ¢·Ḅ¸⊤¹!⌱º"FJᡈ“F¼.¬ṹ|(kgg±10m/sM½¾ᶇ1ÀᨵᦔᦪÂ஺2XY¹U¢klᘤ£¤¥¦,¢+ÃÄvÅḄ¸oA.Æ(ÇᐜÉ®¥¦B.ÊJ¥¦¢XY½¾ËᨵÌÍC.(ÎÏ◀ÑᩚÒÓ

17᪆1Aklᘤ¹Ḅ!ᙳ(s!,(vÜᦑAklᘤ¢·Ḅ¸⊤¹!F"$⊝J,mg=Rsin஺Þ9=30஺J,F,=l.001N,m=0.05kg஺2ᙠᢞ¬ṹ&ß,¢klᘤ£¤¥¦,¸(ÎÏ◀ÑᩚÒÓḄ?᥅ABᦪ<0.5Dᩚ=EᔣᜳG<37°H,"ᳫIᩚាKLᒴN-OPO?,sin370=0.6,gQ10m/s2,RSHḄᜧ"஺Tᫀ22Nᡈ2NW᪆Y"ᳫI,ᩚᒴNᔣZP?5ᚖ-ᩚEᔣᨵFkmgcos஺+Fsin஺IᩚEᔣᨵf+mgsin஺=Fcos஺]f_`FNWa1/mgcosJ+mgsib22NY"ᳫI,ᩚᒴNᔣcP?,ᚖ-ᩚEᔣᨵF\=mgcos0+Fsin0IᩚEᔣᨵmgsin0=Fcos0+f]f_URmgsinOmgcose2WaF_cosJ+஻sin஺