1、mgfN图aa1FmgfN图ba2乙甲图3-1乙甲图3图2BAF图1BAfFmgN37fFmgN图1F1F2Fs1mgNFmgNv0=0vmv4=0s2FFGGFABAF37fmgN乙甲F1图A-2F2NN乙甲F1图A-3F2m1m2图3-3dF图7COfdF图7sFfmgs=36mv0=0v0=24m/s第16图mgfN图630mMABC图6MgmgfN1m30MABCfN1f地Pa AAA图530yfxmgNa图9qqa图630aGfaxNaaya图9q图9aFt/sF/N24682000100030000图4小车打点计时器电池图8沙桶甲12345cm图7乙F/Na/ms-20101.00
2、.516图6图3-5ABFmF图4A-3Mm2m1F图4A-2BAF1图4A-4F2BAF图4A-5图3-9图3-6LAB45AP图3-4m图3-2图3-1图3-5图3-8图3-7图3-10ABF图3-13图3-4第17图mgfN图1Nfmg图2NfmgvabcdeFTmF1F2600ABC图3-13NmmamgAB图3-3A图3-2AB图3-10vtT2T图3-11乙图3-10NBfB(M+m)g图3-14t(s)v(m/s)2134501020-6F图3-15BAFtT2T甲乙vtT2T图3-11F0-F000h图15-1ABA图3B123图3-6A图5ABvFFABBAC12kA图1a37CAB图12PQBA甲v图3-2vabcAVV1V2MmFmgTA45PmmgTNFyVGo小车小车图1图2mgfN丙a2mgfN乙a1N1mgf130MmOABPavMFaaaaaamgmahs图6ACB7.5cm60.3cm105.6cm27.6cmDE1图80234s1=6ms3v2=9m/sv01图80234s1s2s3s4s5s656图16-5单位(cm)ACB2.0DE2.42.83.23.64.0FG20m1秒1.5秒tHa图9BAv0乙甲图2-1m/s0vt/sv0t1t2s1s22.5秒2.5秒TF=10N300G=8N370AF=6N