90100124481-89-124201A.B.C.D.2,vvAABACtABtACA.tABtACB.tABtACC.tAB=tACD.3.,,,R,mgRtan,()A.B.C.cosmgD.cosmg4,,O,OP,,,A.B.C.D.5mRABCOPL题2题3题4万古乡中学2018-2019学年度高一下学期3月模拟测试物理试题VA.Rvmmg2B.mgC.D6224A.12B.4C.259D.67GA[]BCD820161019331ABCD9hv0s1vA.0vsB.gh2C.gvv01D.gvv202110,ava,taP.Pabvb,tbq.,题5题8A.va=vbB.va=2vbC.ta=tbD.ta=2tb11,O,O,P,AB,APOBP,A.ABB.ABC.AP2:1D.AB3:512.ABCABC3m2mmABBCABCr1.5r,A.AB.BArm23C.rgD.rg32241213,.:A.________,B.,,OO.________C.xy,v0=________.v0,D.,O,,________().340avavbPqb题10题11题121414,2L,O,ABAB,Am,B2m,O.(1)A,A,A(2)BgL,A(3),OAB1512Av0Ay=5mx=6mh=3.2mg=10m/s21v0=2m/s216142018128201913-h,TR(1)(2)BOA题14题15CCADDDBDBDBDADBD1213___V0=ygx()__BADC___()2340141414gLvLvmmg224mgTTmgTLvmmgTvvLLABABABA22'236LgLmmgTTTLmmgTvvLLBABABA322222121151216mxxxgty22mxtv210000226smvsmsmvtvxgthyxgty/10/6/10216m/svtv212222211121161418323322)(3VM34)()2()(RGThRRVhRTmhRMmG26RhRThRvRGMvRvmRMmG)(222