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(1989)(24,4)().1r=2ti^+(4-t2)j^,t0().(a),(b),(c)(d).2,.,..,().(a)(b)(c)(d)(e).3,,,.().(a)Bd=0(b)Bd0(c)Bc=0(d)Bc0.4K.,H...,().(a)H2K-K2(b)2H2K-K8(c)2H2K-K2(d)4H2K-K45Y=k1+116döH,k,116.H16cm,d=011500cm.Y4,H().(a)cm(b)cm(c)mm(d)cm.6()34().(40,5).1120m,.2,mös;20m.210,510LF20VJöK.31,100,0,8000J,.,10000J.,,;%.41Q0,m,q(0).,oo.51,R,QOd1q1,d2q2,().61,,44,.71I0,P1P3,P2P3H.I3I0ö32,H.8119781987.(14)L=418m,Au0=2mösm1=1kg,m2=1kg,m2,k=400Nöm,l=0130m,M=2kg,(,m1m2).(12)R1R2(),R1R2R1R1=-R2R2.(1)S.(2)S.(12)O(0,0),vXYH(0H180)m,q(0),XYB,OX,(,).(10),,,TE=300K,RE=6400km,RS=6195105km,D=11496108km,T.(8),100m,(,),,1000m.,,5410cm,60,.(24,4)11(a):rva,.r=2ti^+(4-t2)j^v=drdt=2i^-2tj^a=dvdt=-2j^rõv=xvx+yvy=4t-2t(4-t2)=2tõ(t2-2)t0,t=2,rõv=0.rõa=xax+yay=-2(4-t2)t0,t=2,rõa=0võa=vxax+vyay=4tt0,võa0.21(c):g,.,-mgmgT.,T.v,T,.,T,T=mv2l(l).3(a)(c):,.(,,)...,O12.1PB1,,PB2,,B1B2.P,.B,(P)..,,(a)(c).41(d):2l-x=2H2+x24-x,x.,64:2H2+x24-x=K2x=4H2K-K451(d):d=011500cm,H16cm:116dH01015H,116dH=01015,Y11015,(d).61(a):(a),,(),.(d),,,.(c),,.,(b).(40,5)11P1620mös,3:,246060s,246060s.:X=2P246060,:S=htgXt2:v=dSdt=hX1cos2(Xt)=P21601cos2P6=P216043=P1620mösS=h,t=1Xtg-1Sh=1Xtg-11=P4X=P42460602P=36060s3.21.31125,3114à:Q1Q2=T1T2,Q1=T1T2Q2W=Q1-Q2W=T1T2Q2-Q2=T1-T2T2Q2W=T1-T2T2Q2,WW=T1-T2T1-T2T1=T2+(T1-T2)WW=273115+125t1=125G=1-T2T1=1-273115273115+125=3114à7441P2E0mQq:.i(S)EõdS=q()E0i(S)EõdS=2E$Sq()=Q2x$S(-d2xd2)E=QE0xXq(0)F=Eq=QqE0x,-QqE0k.q,X=-qQE0m,T=2PX=2PE0m-Qq,qOOT4=P2E0m-Qq.51-d2QR+q1d1:q1q2,,.,OU0.U0=Q0dQ4PE0R+q14PE0d1+q24PE0d2=Q4PE0R+q14PE0d1+q24PE0d2U0=0,q2=-d2QR+q1d1614,2:,,a.,,a,,A2=2A1()IA2I2I1=A22A21=(2A1)2A21=4.,,2.713060:A3=A2cosH=A1sinHõcosH=A12sin2H84II1=A23A21=(sin2H)24I1=I02I=I02(sin2H)24=I0(sin2H)28(sin2H)2=8II0I=3I032(sin2H)2=8332=34sin2H=322H=60120H=306081,(1978);(1979);CP(1980);,,(1981);(1982);,(1983);WZ0(1984);(1985);(1986);,(1987).(14):m1m2,(a).,m1u0,V,m2,(b).-m1-m2,,0=m1u0-MV()V=m1Mu0m1m2,u,(c).m1-m2,m1m1m2,,m1u0=(m1+m2)uu=m1m1+m2u0(c)m2.(b)(c)$t,V,m1m2,m1u0,L2-l=(V+u0)$t$t=L2-lV+u094$t$X1=V$t=VV+u0L2-l$X1=m1u0öMm1u0öM+u0L2-l=m1m1+ML2-l,m1m2,,(d).(c)(d),-m1-m2-,12k($l)2=12MV2+12(m1+m2)u2($l)$l=MV2+(m1+m2)u2k$l=Mm21M2u20+(m1+m2)m21(m1+m2)2u20k=1k1M+1m1+m2m1u0(c)(d)$t,,V(t)m1m2u(t)t,m1m2,(m1+m2)u-MV=(m1+m2)u(t)-MV(t)=0u(t)V(t)=uVu(t)=Mm1+m2V(t)$tm1m2u(t)u(t)=V(t)+u(t)=V(t)+Mm1+m2V(t)=m1+m2+Mm1+m2V(t)$t0u(t)dt=m1+m2+Mm1+m2$t0V(t)dt$t0u(t)dt=$l$t0V(t)dt=$X2($X2$t)$X2=m1+m2m1+m2+M$l=m1+m2m1+m2+M1k1M+1m1+m2m1u0()$X1+$X2=m1m1+ML2-l+m1+m2m1+m2+M1k1M+1m1+m2m1u0=11+24182-0130+1+11+1+2140012+11+112=0170+0105=0175m(12):11O,,E,,E.,E+E0,.EE,.,SS,SS,S.21S,S05OU0,U0=2PR21R14PE0R1+2PR22R24PE0R2=12E0(R1R1+R2R2)=0S.(12):BXY,,VXH,R=mvqB.OY,P.PX.Px=-RsinHy=-R+RcosHRsinH=-xRcosH=y+RR2=x2+(y+R)2,RO.,.BXY,..(10):-,TE0=RT4(R=516710-8Wöm2K4)4PR2EõRT4E.,4PD2PR2Eõ4PR2EõRT4E=16PD2RT4E.E0S=16PD2RT4E4PR2S=4D2R23RT4EE0S=RT4SRT4S=4D2R2SRT4ETS=TE4DRS2å=41496049152å300=6122103K(8):15H1xH1y.H1x=30,H1ysinH1y=hl=1001000=011H1xH1y.H1xH1y,,a,b,,asinH1x=Ka=KsinH1x=10sin30=20cmbsinH1y=Kb=Ksin1y=10011=100cm()25