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物理学陈宜生课后答案

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物理学陈宜生课后答案()61v(0)=8m/s;v(1)=4m/s,v(2)=0;7.s=20m:x=10m,s=10m2,:x=0,s=20m:x=0,s=10m8.r(8)2629ij2-81616rij9.t=0.705s;s=0.715m.10t2=8.81sh=381.31m100060.63vij||338/vms11.(1)A;(2)1.56s;(3)0.87s40.87s12.32()10203(2)45.334.......(2)8/xtttxmatams1331()4123xttt14121(1)(1)8,(2)1...

物理学陈宜生课后答案
()61v(0)=8m/s;v(1)=4m/s,v(2)=0;7.s=20m:x=10m,s=10m2,:x=0,s=20m:x=0,s=10m8.r(8)2629ij2-81616rij9.t=0.705s;s=0.715m.10t2=8.81sh=381.31m100060.63vij||338/vms11.(1)A;(2)1.56s;(3)0.87s40.87s12.32()10203(2)45.334.......(2)8/xtttxmatams1331()4123xttt14121(1)(1)8,(2)114,3i+4.5j,v=3i+4.5j2rijrijr1616rijrij16161616=8.81s=8.81ss=0.715m.s=0.715m.100060.660.63vijvij100060.660.63vijvij;(2)1.56s;(3)0.87s;(2)1.56s;(3)0.87s(2)v=3i+(t+3)j,v(3)=3i+6j,a=j,a(3)=jt21(3)a(3),(3)55na(4)21(8137)18yxx15.(1)43,(1)243,(1)26rijkvijkaik16.v=53m/s17.9(1)t=-,(2)0.9520ssm18.2435212;235vttxtt19.3213()(22)(1)32rtttittj20.22(34)(642549(1)1025ttatnan21.24sin2(tancot2)secABh22.2202203v=-vxhixvhaix23.201114xxktvv1.03.(1)a=2m/s2;m=5kg(24.()0.60.946aij()(22)(1)atnatnatn4sin2(tancot2)sec4sin2(tancot2)sec4sin2(tancot2)sec4sin2(tancot2)sec4sin2(tancot2)secai(),0yF,ay=0,0.6ai6.(sintancos),tan2sin(sintancos)aghtg7.(cossin)1arctan()mgF8.121/,10,30amsTNTN9.1.43/,352.84;71.5;101.4ABCamsTNTNTN10.23()424()23vttijrttitj11.168;17.4,1arctan()2FijFN.12.(1)600N;(2)600N(3)720N(4)480N13.T-N-Mg=Ma();N-mg=ma();T-(M+m)g=(M+m)a()14.53hR15.1/,10,301/,10,30amsTNTNamsTNTN1/,10,301/,10,301.43/,352.84;71.5;101.41.43/,352.84;71.5;101.4ABCABC1.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41arctan()arctan()arctan()11.43/,352.84;71.5;101.41.43/,352.84;71.5;101.4ABCABC1.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.41.43/,352.84;71.5;101.4168;17.4,168;17.4,FijFNFijFN168;17.4,168;17.4,168;17.4,168;17.4,200220(1)(),9.8/(1)(2)(10.0035cos)(3)()()gghgmshRPmgrgrgR16,3321211()()223WxxxxJ17.(1)W=528J;(2)325421624672;(1)12PtttpW18.24;0.27;10/108.66;||13.2/ABDWJvmsanams19.0()vgLL20.0;IW=021.WI=3330J;W=-3000J;W=-322.8J22.I=0;3pij1211212212;ftftftvvmmmmm220(2)1();;2()2rKMmMMmvMMmvvfEvmslmm2002RGMrvvR=-3000J;W=-3000J;W=-322.8J=-322.8J=-322.8J=-322.8J3pijpij33pijtftfttftft434.210;3066/3.110/rkmvmsmsrdmFudtÑ12Ü35(1)1.75;(2)3;(3)0;(4)20ffvav2dpF=44.4./dtkgmsi522.1410vr211v=20m/s;an=200m/s;a=0(2)a=4m/s22.2222(1)(2)8/;(2)8/(2)(1)0.4/;(1)1.8/;(1)1.844/nradsradsamsamsams3.6(/)Avms4.222;;060()60()AABnrnrbabtabt5.372299.7110.;2.6610KIkgmEJ6.F=314.2(N)7.2()2Mhmtmg8.212222120;1()2RmgrmgmrmRmrmR211112222120T;1()2RmgrmgmgmrmrmRmrmR22222222(1)(2)8/;(2)8/(1)(2)8/;(2)8/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/222222222nn(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/radsradsradsrads(1)(2)8/;(2)8/(1)(2)8/;(2)8/(1)(2)8/;(2)8/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(1)(2)8/;(2)8/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/9.7110.;2.6610K9.7110.;2.6610kgmEkgmE9.7110.;2.66109.7110.;2.66109.7110.;2.6610K9.7110.;2.661060()60()60()60()60()60()60()60()60()60();;0;;060()60();;0222222(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/222222222(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/(2)(1)0.4/;(1)1.8/;(1)1.844/nrnrbnrnrbnrnrb;;0;;0nrnrbnrnrb;;0;;0;;0nrnrb;;0;;0;;0;;060()60()3723729.7110.;2.6610kgmEkgmE3723729.7110.;2.66109.7110.;2.66109.7110.;2.66103723729.7110.;2.66109.7110.;2.66109.7110.;2.66109.7110.;2.66109.7110.;2.66109.7110.;2.66109.7110.;2.66103723729.7110.;2.66109.7110.;2.66102122222221201()2RmgrmgTmgmRmrmRmrmR9.T1=48N;T2=73N10.2.1/;32orads11.5s12.v=0.164m/s13.22(/);33.33cramsfN14.2221mR2MR15.223mR16.21324mR17.341134IaLkL3(3)11.3.79-17233.1971019.98ev;p=1.110./19.99ev1.0631'9.610./;'0.54KEJGkgmsEGkevpkgmsEMev179.6;1.5710mgMkg'2142000()1.810;1.810EEmmcJPWt8728'(1)'6.6710(2)('')199;**('')6.610(3)310/xtscxxutmuttxscxmst9-9-9-3.1971019.98ev;p=1.110./9-9-9-3.1971019.98ev;p=1.110./3.1971019.98ev;p=1.110./1.0631'9.610./;'0.541.0631'9.610./;'0.543.1971019.98ev;p=1.110./3.1971019.98ev;p=1.110./9-9-9-kevp1.0631'9.610./;'0.543.1971019.98ev;p=1.110./3.1971019.98ev;p=1.110./9-9-9-1.0631'9.610./;'0.541.0631'9.610./;'0.541.0631'9.610./;'0.54mgMkgmgMkg9.6;1.57109.6;1.57109.6;1.57109.6;1.57109.6;1.57109.6;1.57109.6;1.571080.6;'10ucts2200021cos;arctan[tan]ullc222221;cos',sin'xyRxyRRR6'10;2.210tyearstyears''0'002.3;9.53;41.4sssmmmmmm-32200(1)W=510;(2)2.73mcWmc13226128.9810/;3.710;3.310amsmkgFN2001310(1)0.78(2)1.249610;1.5110KPEEmcMevEJEJ16251.1610;5.8910/pPavmstyearstyearstyearstyears'10;2.210'10;2.210'10;2.210tyearstyearstyearstyears'10;2.210'10;2.210tyearstyearstyearstyears'10;2.210'10;2.210'10;2.210'10;2.210'10;2.210'10;2.210'10;2.210'10;2.210'10;2.2102.3;9.53;41.42.3;9.53;41.4ssssss''0'2.3;9.53;41.42.3;9.53;41.4''0'2.3;9.53;41.42.3;9.53;41.4''0'2.3;9.53;41.42.3;9.53;41.4''0'2.3;9.53;41.42.3;9.53;41.42.3;9.53;41.4-32-320000(1)W=510;(2)2.73(1)W=510;(2)2.73-32-32000000(1)W=510;(2)2.73(1)W=510;(2)2.73(1)W=510;(2)2.73-32-3200000000(1)W=510;(2)2.73(1)W=510;(2)2.73(1)W=510;(2)2.73(1)W=510;(2)2.73-32-3200000000amsmkgFNamsmkgFN8.9810/;3.710;3.310amsmkgFNamsmkgFNamsmkgFN8.9810/;3.710;3.3102114ppf(v):dNf(v)=Ndvvvv+dv.(1)f(v),dNf(v)dv=Nvv+dv;.(2)f(v),Nf(v)dv=dNvv+dv;(3)v1;.(4)vv+dv;(5)1v;(6)v1v2.2()500/pvoms.p2v()2000/Hms;612m/s2450m/s.111122pRTTvvT;01S12112212121()(()())dNdNdNfvNfvNfvNdvNNNN2532.710/;pnmkT9313.3310lmn24.4610/vms72.110m912.110zs28315.710nzcms211212112(1)1();2(1)ffppp 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