2023新高考新教材版物理高考第二轮复习--专题一 匀变速直线运动

《2023新高考新教材版物理高考第二轮复习--专题一 匀变速直线运动》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
ὃᦟᩞ᱐ᱥᳮ
ὃ⚪ᒴ1.2022,2ᙠᩩ!"#$%Ḅa'(b')ᐸ+,-./ᑖ12.3a(4b,t=0,5a'6b'ᙠ78)ᓃ,5a'ᙠb':;,ᙠ,-ᑁ,=ᑡ?@ABḄCDEA.L,5F'GHᨬJB.K,5F'G⍗C.L,5b';ᔣNOᦋD.K,5a'Q+RSb'Q+TᫀD3,5:F'HVᜧ,L",-ᑁb'XYa',#,5a'ᙠb':;,?Z[ᨵX#,]ᓃ,5^a'_`b'+a,HVbcᜧ)deG⍗,AஹB┯g;ᙠt.,5b'ḄQ+;ᔣNOᦋ,+;ᔣd,C┯g;v-t.Ḅj᳛⊤mQ+)ᑣᵫ⚪.pq,ᙠt,ᑮ&,-ᑁK,5F'ḄQ+G,ᦑDAB஺2.2022vw,6xᱛz{|p}ᙠ~HVᑁ6Rᜓ,KḄxᱛ{|ḄᨵᦔHVC18m.ᙠFᩩ$]☠Ḅ⍝#)ᑖ18z'AஹB,F'ᑖ1{|(஺K,5F'GH50m,Gᔣ$,+ᜧz,-ᓄ./ᙳ᝞.ᡠm஺ᑣ6{|Gᑮᢝ¢Ḅ,-2DEA.1.9sB.2sC.4sD.5.9sTᫀAᵫ⚪.pq,F'ᙠG⍗:£Q+a=2m/s¤ḄᒴQ,F'Gᔣ$,¥HV218m,)¦,F'ᔜ¨©ªx¬50-18m=16m,᪷®x¯a°±²t,=4s;¥F'G⍗,),-2t°=5s,³^F'}v=10m/sḄ+ᔣG´;ᔣᒴ$%,¥F'bcGH18m,))ᑣᒴ,F'ᔜ¨Ḅ7µ2X=9m,,-tkᒹ=0.9s,ᑣ2V6{|Gᑮᢝ¢Ḅ,-2t=t,-t,+t=l.9s,ᦑ⌱A஺23.2022¸ᑖ¹,Dº»'¼⍝"$%,»'ᙠt=0ᑮt=40s½¾,-ᑁḄ\-t./᝞.ᡠm஺ᑖ᪆./pqDA.10^20s»'ᜐS☟ÂÃ᝱B.40sÅ»'VÆNÇᨬJC.30sÅ»'ḄQ+ᜧz23m/s21⚓ᐳ10⚓

1D.O'lOs620~40s»'Ḅ;ᔣG´TᫀBᵫv-t./pq,10~20s»'£+230m/sḄᒴ,A┯g;ᵫvT./pq,»'ᙠ1=0ᑮt=40s½¾,-ᑁᔣA;ᔣ)pq40sÅ»'VÆNÇᨬJ,BAB;᪷®v-t.j᳛ḄÊËÌ⊤mQ+Ḅᜧzpq,30sÅ»'ḄQ+ᜧz2a-——m/s2=-m/s+C┯g;ᵫv-t./pq,0~10s620'40s»'Ḅ;ᔣÍ2A;ᔣ,ᓽ4U-ZUZ;ᔣG,D┯g.4.2020Ï᪥ÑÅὶὃEᱥÓᙠÔ☢#£,ᵫt=0,Ḅ+-,-./᝞.ᡠm,=ᑡ?@ABḄCDA.t=6s,,ᱥÓVÆNÇᨬJB.ᙠ6sᑁ,ᱥÓᙠ1s,+;ᔣNOᓄC.ᙠ0~4sᑁ,ᱥÓḄᙳ+27.5m/sD.ᙠ5~6sᑁ,ᱥÓ£ᒴ×TᫀC0~5s,ᱥÓ¼Aᔣ,5~6s¼Øᔣ)ᦑ5sÅVÆNÇᨬJ)ᦑAஹB┯g;ᙠ0~4sᑁ)ᱥÓÙÚḄ7µ2x=+X10X2+10X2m=30m,ᡠ}ᙳ+2Û*^m/s=7.5m/s,ᦑCAB;ᙠ5ஹ6sᑁ)ᱥÓḄ+2ØÌ)Q+\27t4Þ2ØÌ,£ᒴQ,ᦑD┯g஺5.ᱥᳮOß2022▷ááâã¹ὶὃE!ᐳ»'äå,,ᑷ'ÚçḄQ+-,-./᝞.ᡠm,èéᙠ6s,ាëìᙠåíᜐ,îq»'ïðñ25000kg,òóQ+gô10m/s+ᑣ»'ᙠA.0ᑮ6sᑁḄ7µñRS30mB.0,5Ḅ+ñ228km/hC.4s,ḄQ+ñ20.5m/s2D.0õöJ6sᑁ+ᓄ28m/sTᫀBa-t./6t÷ᡠøḄ☢ù⊤m+Ḅᓄð,ᵫ⚪.pq+Ḅᓄðᜧzñ2Av=2Xlm/s+|x1.5+2X2m/s+|x3X1.5m/s=7.75m/s,ᡠ}0,5Ḅ+ñ2vúAv=7.75m/s-28km/h,_û2!ᐳ»'£Q+⌲ý×zḄ×,ᦑ0~6sᑁḄ7µþÿx<|v»t=23.25m,ᦑAஹD┯,B;ᵫ⚪4sᐳḄ1.0m/s5,ᦑC┯஺6.ᱥᳮ2022!"#মᡠ&Ḅ'ᘤ)ᙠ+,-./▾12345678য:;'ᘤ)ᙠ<=>ᑁḄ@A->CDE10sḄ5F58ᐸH45#஺ᑣJ2⚓ᐳ10⚓

2A.O'lOsᑁ,'ᘤ)3ᒴ4567B.10~30sᑁ8'ᘤ)ḄNᙳᜧQ0.35m/sC.'ᘤ)ᙠ5sRḄS15sRḄTUD.'ᘤ)ᙠ0~30sᑁḄ@AᜧQ12mVᫀBx-t5ḄX᳛⊤&,0'10sᑁ85ḄX᳛[\,'ᘤ)3ᒴ4567,A┯;10'30sᑁ8NᙳᜧQ7V=—m/s=0.35m/s,B;0~10sᑁ5ḄX᳛S10~20sᑁ5ḄX᳛ᐵ^k_-k5,ᡠ`'ᘤ)ᙠ5sRḄS15sRḄaᜧbᔣ,C┯;'ᘤ)ᙠ0'30sᑁḄ@AᜧQ2m,1)┯஺7.(2022de!f,3)gh8!=ᱯjḄ“l”,⚣opqr8,⚣-.!tuvw7u!txᐶw7ᙠzT{|8}ᙳ345678ᐸ67~᝞ᡠ&,t=0,}ᜮ᣸8ᑣ()A.10sRuvwḄxᐶwḄᜧB.32sxᐶwḄ80m/sC.0ᑮ32sᑁ8ᙠ24sR}ᜮTᨬD.}ᜮᙠ24sR᣸VᫀC᪷v-tCḄX᳛⊤&810sRuvwḄxᐶwḄQ8ᦑA┯;ᵫ,32sxᐶwḄv=60m/s+——X(32-8)m/s=78m/s,ᦑB┯;ᵫ,0ᑮ32sᑁ,24suvwᜧxᐶw,24sEZ4-Oxᐶwᜧuvw8ᡠ`ᙠ0ᑮ32sᑁ8ᙠ24sR}ᜮTᨬ8ᦑC,I)┯஺J3⚓ᐳ10⚓

38.2022ᓭᜧ▬-ᨴὃ,8⌱#ᱥᳮ-ᨵ!¡ᐺ£¤,¥¦§ᝯḄ©ªஹ«ᵨ®Ḅᘤᩞ°&±²³Ḅᱥᳮ´µ஺¶ᑭᶍḄX☢£¤°&±ᒴ\4567º».ḄÕxÖQᳫᙠAB=67Ḅ>t,ᦋ\ÑÒᘤᡠᙠA×Ḅ@Ø8Ùx£¤,ªÚ'ÛÔC᝞ᡠ&஺ÜᑡÞßḄ:DªÚ'ᵬA.QᳫᙠX☢à67ḄNᙳᜧQ6m/sB.Qᳫ67ᑮX☢ÏÈᜧQ6m/sC.QᳫᙠX☢à67ḄᜧQ6m/s2D.QᳫᙠX☢à67Ḅ>2sVᫀBCᵫᒴ\67º»ᨵv_v,ஹ+at,x=vt+|at2,2-at,ᵫ,Qᳫ67ᑮX☢ÏÈᜧQv«=6m/s,A⌱⚗B;QᳫᙠX☢à3ᒴ678NᙳQ6m/s,⌱⚗A┯ãᵫ^2="|m/s?,QᳫᙠX☢à67ḄᜧQa=6m/s-',⌱⚗C;ᵫv_at.,QᳫᙠX☢à67Ḅ>to=ls,⌱⚗D┯஺9.ᱥᳮ2022åæ▬-!f,7<᪥èᳫ67ᕒ¿ê±᝞ᡠ&Ḅëᙢíî᥎ðñò.óµôm=50kgḄ67ᕒëᙢ☟ËõöD[÷î#᥎ð2.10m,ø¦ù-,;67ᕒᐜÜû8ÙüÜý0.5m,¡¦ᐙᑖ᦮᥎ᑮ2.90mḄ஺ᕒᒴ,ᶍ!,g"10m/s1ᑣᕒ$A.%,&'()*ᙳᒴ,B.Ḅ-ᙳ./ᙢ1ᓣᑮᨬ4Ḅ-ᙳ5ᜧ7ᔣC.ᕒᙠᨬ4)ᜐ;-⊝=᝱D.?@AᑮBCDᙢ◤⌕L.05sGᫀD%I&'()*Ḅ-Jᙳᒴ,,ᦑA┯MN%ᕒḄᵫP,ᜧᑮᨬᜧv,/ᙢ1ᓣᑮᨬ4Ḅ%,ᕒḄQᵫvRSᑮP,᪷UᒴVḄ-ᙳWX-IZ[Ḅ-ᙳ./ᙢ1ᓣᑮᨬ4Ḅ-ᙳ5ᜧ\ᔣ,ᦑB┯M;ᕒᙠᨬ4)^_`,aᜐ;-⊝=᝱,ᦑC┯M;ᕒBC/ᙢbcd1e,ᵫ⚪gZ[1ᓣ11=2.90ID-2.10m=0.8m,bcd1eḄ)*3=2h=0.8s,ᕒBC/ᙢ)ḄᜧSi=k=4m/s,ᕒ%`lᔣ1Ḅh=0.5m,ᑣmnᡠᵨ)*tqr=0.25s,?@AᑮBCDᙢ◤⌕t=ti+t2=l.05s,ᦑDst஺10.ᱥᳮxy2022z{|}~,3ḄW)*ᢣḄ?☟@Aᑮ100km/hᡠḄᨬ)*஺nḄJW)*5.0s,ᨬ250km/h஺Ꮇ?☟@AbᒴdIᑣ$4⚓ᐳ10⚓

4A.ᑮ100km/hḄ%Ḅᨬᜧ5.0m/s2B.ᑮ100km/h,Ḅᨬ&'250mC.50m,᳛£¤80km/hD.ᑮ250km/h,ᡠḄᨬ)*15sGᫀCᑮ100km/hḄ%Ḅᨬᜧ§Sn^©2m/s,Wm/sNᦑA┯M;ᑮ100km/h,Ḅᨬ&'xgt,=5m,ᦑB┯M;50mḄᨬᜧ᳛®m/s,¯5m/s>80km/h=^250x^V7m/s,ᑣ᳛£¤80km/h,ᦑCst;ᑮ250km/h,ᡠḄᨬ)*tq1=50s=12.5s,ᦑD┯M஺am-g-11.$2022³ᓅµnὶ·@¸ὃº,4¼ᵬஹ¿ÀÁ4ᙠ

5)Âஹ?

6ᙢ4Ã

7Jᔣbd஺Á4ᵬbÄPஹᜧSa,Ḅᒴd,Á4¿bÄv஺ஹᜧSa,ḄᒴRddÇRPÈᢝ☟Iᵬஹ¿ÀÁ4ᙠ%Ḅx-vÊË᝞ÊᡠÍ,Î.ÏÐḄᙶ᪗Óᚖd஺Õᑡ×ØstḄ$¼A.Êa⊤ÍÁ4¿ḄB.Á4ᵬḄᜧS3m/s2C.Á4¿ḄᜧS1m/s2D.@A,ÀÁ4ᙠx=6mᜐÜ⍗GᫀC᪷UÊËZ[IÊa%(&'Ḅ,ᜧ¯,ᜧIÊb%(&'Ḅ,ᜧ¯RSIᡠßÊa⊤ÍÁ4ᵬḄIᦑA┯M;àx=0)I¿Ḅ6m/s,ᓽÁ4¿ḄÄ\ã6m/s,äÁ4¿ஹᵬᐜæx=6mᜐ)Ḅᙳv,ÏÁ4ᵬᨵvJ2aiXজÏÁ4¿ᨵVI-ᛀ=-2a?xঝὶïজঝðña,+a=3m/s?ঞ2àÁ4ᵬḄv,=8m/sஹÁ4¿ḄஹIô2m/s),ÀÁ4æÜ\Ḅ&'äx'ÏÁ4ᵬᨵö=2a]টÏÁ4¿ᨵ-%=-2aúyঠὶïটঠðña,=2a@2ὶïঞডðñÿ=2m/s2,a=lm/s22ᦑB┯,CaஹbḄ⊤ᙠ!"#$%&'()*+'#(ᦑI-┯஺12.ᱥᳮ3ᢈ5202278ᓭᨴὃ,3-ᚆ>?@A“▮ᡊEF”(ᙠᡊHIJᐸLᱯḄNOᡂA*QRSḄTᘤVᜓE஺ᚆ>XYZ[Ḅ#᎛ᙠX]ᑁ_`aḄb%Qcdᑮ3000࠷,ghQdᑮijᐚl(ᡠcX]Ḅnᵨpqrs஺tuvᡊᚆ>ḄvXX]ḄwnᵨpqxA3s,X]y%xA5m,XY{|X]Ḅ$%A1800m/s஺ᑣ᪵Ḅ᪷X]ᨬZ[XYḄᦪA5-A.340B.540C.740D.9405⚓ᐳ10⚓

8ᫀBc⚩XYAẆ(ᐸ$%v=0,$%v=l800m/s,!x=5m,᪷*=1,Qcᑮ⚩XYᙠXo13s]Ḅ#¡s,ᡠcZ[ḄXYᦪn=?=540,ᦑB஺loUC¢⚪ᢣ¥¦⚪ᳮ§“X]ḄwnᵨpqxA3s”Ḅ¨©+§⚪ᐵ«,¬⊤XYᙠXḄw#¡(ᡠc®¯⚩XYᙠXḄ#¡(°r±᧕®¯Z[³⚩XY´஺13.ᱥᳮµ¶202278·¸¹º»Ẇ,2᝞,½¾¿ÀᵨÁÂḼÄᜮÆᔣÈÉÊËḄᡧËÍÎÏÐË᪾ḄᙢÆÊᑮ!"ÓÔÕ,ᡧËÖ×ஹÐË᪾ᔜÙÚÛÓ(ÜiÝÞᑮ´!"஺ᑣ;¿ÀÊË|ßᑮᨬàËáâ,ᡧËḄv-tãäᔠæ▭Ḅ+ᫀA¾¿ÀᵨÁÂḼÄᜮÆᔣÈÉÊËḄᡧËÊᑮ⚪ᡠ!"#(Ëᐜé$ê#¡;¾¿ÀÔÕ(ÊÁìᜫÓ(Ëî$,Ö×Ë᪾ÙÚÛÓ,ï$᳛ñY,$%ñᔣ;EÓᔣÐî$,òᑮÐË᪾Ó,ï$᳛ñY,$%ñᔣ;EÓËᔣ×î$óáô(äᔠõö÷Ḅ+A⚗Ḅã஺ᦑ⌱A.§⚪ᐵ«úᔠµ¶æ▭ᑖ᪆ÉÊËḄý+§þ¦⚪Ḅᐵ«஺ÿ᜜,,⌕ᱯᐵᔣឋ,Ḅ஺14.2022ᓅ,2ᙠᵪ"#$%,ᵨ'⍝᤬*+,᤬-.ᕒ,᤬*ᬳ1-.ᕒḄ2345x6789ᓄḄ;*᝞;ᡠ>?@ᑡBC%ḄDEA.ᙠ23ᔣF,᤬*+GHI-.,-.ᕒGJI-.B.78ᑁ᤬*+ᙠM,78ᑁ-.ᕒᙠMC.0ஹt578ᑁ᤬*+O-.ᕒḄ3ᙳQRD.O'L78ᑁS7T᤬*+ḄUᜧW-.ᕒḄXᫀC4578;*Z[\]HI-.Ḅ^_?ᦑA┯;0~t278ᑁ᤬*+Ḅ45ᜧW-.ᕒḄ45?᤬*+ᙠM?;*cd⊤>Q⍗?ᦑB┯;0"t,78ᑁ,gὅ45Qi,ᵫqkl3ᙳQi,C;4578;*ᑗIn᳛⊤>,0~p78ᑁ᤬*+ḄqHᜧW-.ᕒḄ?ᦑD┯.s6⚓ᐳ10⚓

915.2022ᓅv,6ETCwxyFqz{ᵯ}ᦈḄ.{ᙠᐭETC⍝M◤⌕5m/s,ᯠᒴ஺ᵬஹg15m/sḄḄ{ᙠᐭETC⍝MUា5m/s,Ḅv-t;*᝞;ᡠ>?ᑣA.37Tᵬ{ḄᜧW{Ḅ78ᑁᵬஹg{Ḅ3ᙳQRC.0ஹt578ᑁᵬஹg{Ḅ9ᓄQRD.L7Tᵬஹg{ḄQRXᫀCᵫ;*klt7T?ᵬ{ḄiW{Ḅ,A┯.0't,78ᑁ?ᵬஹg{Ḅ45kᵨ;IOtᡂḄ☢¢ᩭ⊤>?ᑣᵬ{Ḅ45ᜧW{Ḅ45?ᡠᵬ{Ḅ3ᙳᜧW{Ḅ3ᙳ,B┯஺78ᑁ?ᵬஹ{Ḅ9ᓄ¤tᳮTḄ07TḄ.Qi,C஺t,7Tᑮg{ᑖᑮ5m/sḄ7T?;IOᙶ᪗ᡂḄ☢¢qQi?g{qQR,D┯஺16.2022ᓅª«¬,13ᑭᶍ°±²ᵫ³´Ḅµᙳᒴ9ᓄḄ஺¤¶·²¸Ḅ°±,¹Gº“n☢¼¶”?᝞;ᡠ>஺¾¿Àᳫᙠn☢F-.Ḅ45O78Ḅ¬ᡂ#஺ᦋ9ᳫḄÃᡈÅᜧn☢ÆÇ,F]ÈÉÊᯠᡂË஺ÈᔠFÍÎ,ᑨÐ@ᑡBCḄDA.ᵫ“n☢¼¶”ḄÈÉkl?Àᳫ-.Ḅ678ᙳᒴÅᜧB.ᵫ“n☢¼¶”ḄÈÉkl?Àᳫ-.Ḅ645ᙳᒴÅᜧC.ᵫ“n☢¼¶”ḄÈÉkHÑÒᑮ²ᵫ³´-.Ḅ45O78Ḅ¬ᡂ#D.ᵫ“n☢¼¶”ḄÈÉkHÑÒᑮ²ᵫ³´-.Ḅ678ᙳᒴÅᜧXᫀAᵫ⚪Ô%ḄÍÎklA஺ᑭᶍÕ“n☢¼¶”ᔠᳮ᜜Ö,×Øᑖ᪆ÒÚ²ᵫ³´-.Ḅ^_,ØqHÑᵫ“n☢¼¶”ÒÚḄ஺17.2022ᓅª«¬,4᝞;ᡠ>?¼¶ᑭᵨ45ÛᘤÝÛᘤÒᑮᡃßàá{ᑷ{Ḅv-x;*,{ᑷ{kã¤ᒴ-.,@ᑡBCḄDEA.äå{ᑷ{Ḅ78¤1sB.{ᑷ{Ḅæᜧç¤10m/s2C.è{Ḅ45¤5m7,-.çW5m/sD.è{-.ᜧç¤5m/s7,45ᜧW5mXᫀDᵫ;kl{Ḅé¤10m/s,45¤10in,ê¤0,ᵫᒴ9HI-.^_klᑷ{78t=2s,æᜧç¤5m/s2,ᵫv-t;*këÚ45¤5m7ᜧW5m/s,-.¤5m/s7?45ᜧW5m.D஺s7⚓ᐳ10⚓

1018.(2021ìὶî,15){Ḅ“xïæ78”ᢣḄ×0æᑮ100km/hᡠᵨḄ78,µᢣ᪗ñ{.òឋ[ḄᨬHôḄ´¿,᝞;ᑭᵨõö÷øùø2.0Túûç{Ḅxïæ78Ḅ>ü;஺A¤-.Ḅç{?ýq.Ḅõö÷øùBᔣᔣ¾þõö÷,ᙠ¾þḄR7ÿ
,ᙠ,⌶ᑮᓽᩭ,ᦈᑮᓽ
஺ᙠ!"#$%A&B'(1.=672)*+B,-$.Aᵫ☟12ᒴ45678$9B:ᦈᑮᩭḄ<=,AஹB'(1k704m,?@v.=340m/s.ABপ%AḄ4Dᜧ%Fফ%AḄHIJ4K(Mᶇ2OᨵᦔᦪS).Vᫀ(1)4m/s?(2)6.9sX᪆(DZḄ4D[a,A78ḄK[I,ᑣᩭḄK[t,ᓫ^ḄK[_`g78Oa[X”bg78Oa[X212Xi+x=-at2X]+X2=12—1|cd,ḄOa[1-1+X,2(li+xi)=v<,tXea=4m/s2(2)᪷hDIiᨵv=at'Xet'g6.9s19.(2022jk!l,13)*md!n5opZqᨵrK,rKnD[19km,!s%tuvwḄD[92km/h,ᒴ4xy36sbD[108km/h,:Ḽᒴxy6min,ᯠbᒴ|xy}tu~w஺[ᙠrKḄᙳDuᨬm▲100km/h,AB(1)%ᙠrK78ḄᨬKF(2)turK~wḄᨬmDᜧ%஺Vᫀ(1)684s(2)72km/hXX᪆(DᙳDeq,x=19kmஹ=100km/h,XeᙠrK78ḄᨬKt=0.19h=11.4min=684se(2)Zᒴ4xyḄK[3,ᒴxyḄK[ᓃ,FᙠrKvwḄD[ᒴxyḄD[\rK~wḄᨬmD[V.,Oa[X஺ᒴ4xyḄOaX-93,ᒴxyḄOaXKᵫ,ᒴ|xyḄOaX--^t-tLtz),Oax=xi+xz+x3,ὶXev„=72km/h.20.ᱥᳮl(2022H᪥1l,19):78dḄ!⚗$*"¡$ᎷZᵬஹ¤¥O78ᕒᙠ56§⍝d`b:$ᵬ`!©$¤b!©.ª«Ḅ4D¬[3m/s+ᨬᜧD¬[9m/s.!"l$¤⌱¯〉9±ᙠ:r*ᜐ1³☟4v§,9ᵬ´ᨬᜧDcᑮ¤Ḅµ¶·©$¤ḄD[6m/s஺:ᑮ©b¤¸¹4ᑮᨬᜧD.Z·©K
$º»78ᕒḄD,·:©¬ᙠᨵᦔ:rᑁ,78ᕒ½[¾w஺(1)!"l$¤1§8&ᵬ'(¿ÀÁ(2)[Â_mᡂÄ,Å"l$¤ÆÇ⌱¯v§&ᵬḄ(È,e9¤ḄDÉÊᑮᨬᜧD$ᵬាÌcᑮ¤Ḅµ¶Í·©஺AÎᦋÐÑÒᐰ^¡⁚ḕ¿ÖK஺(×ØMᶇ¥OᨵᦔᦪS)8⚓ᐳ10⚓

11Vᫀ(1)12m(2)0.17sX᪆পᵫᒴÛ5678DIivatÜ@$¤:©`4ᵨt=2s,ᵫxᵬ=v“t,exᵬ=18mᵫᒴÛ5678ḄÞßxz=ytexz=6mà!jAx=x^-xz,=12mᓽ¤1§8&ᵬ'(12m;(2)ᑖ᪆Ü@,Å"l·:©`b,ã©Ḅ78ᕒ!5´ᨬᜧD78,ä!"l¤78ᕒ:©b,Dᵫ6m/s4ᑮ9m/sḄÎpo^å▭ᡠèK&Îpo^!5´9m/sḄD78ḄKéᓽ⁚ḕK$ᵫê᝞⁐$e᝞=1saᵫᒴÛ5678ḄÞßAx'eAx'=7.5mAx'ᵫtí—,et=0.83s2ᡠ´ït=t-t2eAt=0.17sᡠ´⁚ḕÂ0.17s.21.ᱥᳮðñ(2022òᐶÅl,19)%ôᵨ!᪷ᩈᩚÞ8!÷ᵨᩭøùúḄᩈû,1.=0+,ᩈû´3m/sḄDüu᝞ýᡠþḄ᪗
aa,ᔣᚖ᪗
,ᩈᒴ,ᙠt=0.4s᪗
bb',ᯠ,ᩈ!"#$%&ᙠ'ᑖ)cc'dd'ᓽ+,ᡂ.஺01bb'2aa'Ḅ45Xi=l.6m,cc'2bb'Ḅ45ஹ73.6m,cc'2dd'Ḅ45d=0.8m,89ᩈ2ᙢ☢<=Ḅ᥅?@ᦪu=0.3,ᩈḄ#Bm=0.5kg,g=10m/s2,CDপᩈᙠ▤GḄa:(2)ᩈᩚIᩈḄF;(3)ᩈJᔲ&ᙠ'ᑖ)?MNOPQ஺Rᫀ(1)5m/s2(2)4NবUV᪆V᪆পᙠX1%YZ2[=Ḅᐵ]12XFVot+^atr^ᐭᦪ`'a=5m/s2(2)ᵫbcdefg9F-umg=ma,^ᐭᦪ`'F=4N(3)bb,[ᩈḄh-4=2axiV'VF5m/sd9⚓ᐳ10⚓

12lᩈᒴm
%a'=ug=3m/s2mᑮ0,opḄYZXP=rm2a6'3.6m