高一物理必修一试题及答案

115m/s20m/sA16m/sB16.3m/sC17.5m/sD18.8m/s27s2.6m/sA0.4m/s2B0.37m/s2C2.6m/s2D0.43m/s2312sI34sII5sIIIA1s5sB1s5sCIIIIDIIII41sABCD5tABCD6AB8sC80mDt=4s7ABx=7mABAvA=4m/sBvB=10m/sa=2m/s2ABA7sB8sC9sD10s80.1N0.2NA0.2N0.3NB0.3N0.2NC0.3N0.3ND0.4N0.3N9A1vBA2vA21vvABB21vvABC21vvBAD21vvBA10ABCD44161132m1s14msm/s2128sv-tsmm13OABD2EABFAFBADEABBBCBDB1450HzO50123456S1=5.18cmS2=4.40cmS3=3.60cmS4=2.78cmS5=2.00cmS6=1.20cm1a=m/s223v3=m/s4441511t1=8st2=27st3=6s340m/s169ACBC100NACBC3045ACBC179m18152vm/sAt=6sBABL=10mBAB1AB1--10ADCACDCBCDBCAC114s4m/s2123s125m80m13C140.80m/s20.32m/s15111112stvtv33332stvtv33121sstvtv3smvms/10,14001169CxyFx=0Fy=0FBCxFACx=FBCsin45FACsin30=03FBcyFAcymg=FBCcos45FACcos30mg=03.)13(100,)26(50NFNFACBC3179xFNcosTsin=02yFNsinTcosmg=02sincosNFT)cos(sinsinsincoscossinmgmgFN3)cos(cosmgT21815ABt1Lttvtv)(2114ssvLvtt22)1062(2)(212AB2/1/smtvaABt2ssaLtLat5211022,212223smsmatv/52/5212min311m/s2ABs52