匀变速直线运动问题的求解方法（method for solving linear motion of uniformly varying speed）

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1、匀变速直线运动问题的求解方法（Methodforsolvinglinearmotionofuniformlyvaryingspeed）HiscollectionofFeelveryusefulUploadtoBaiduTosharewithyou!"Eight"foruniformvariablerectilinearmotionproblemHunanGuangyiexperimentalmiddleschool410014MaoZhirenInthemiddleschoolphysicsinuniformrectilinearmotionisthecorecontentofkinemati

2、csThebiggestcharacteristicofuniformvariablerectilinearmotionproblemisaproblemmanysolutionsSeveralsolutionstooneproblemisanimportantwaytocultivatetheflexibleuseofthelawThesolutiontoaproblemInternalconnectioncanbettergraspofknowledgeandunderstandingTounderstandthecharacteristicsofvariousmethodsTherefo

3、re,intheusualcourseofstudyTopayattentiontoallkindsofproblemsolvingmethodtrainingCarefullyToseekthebestsolutionTheeightwaystosolvecommonproblemsinuniformrectilinearmotionisintroducedasfollows:Amethodofdeduction1,thebasicformulamethodUniformvariablerectilinearmotionformula:,,,IntheseformulasOnlyinvolv

4、esfivephysicalquantities:theinitialvelocityofV0,VT,a,terminalvelocityaccelerationanddisplacementtimetsV0,VT,a,s,theyarethevectorWhenusedtopayattentiontothedirectionofForlinearmotionIngeneral,V0forwarddirectionTherestwerethesameandthedirectionispositiveCheckthevalueof"+".ThecontraryisnegativeandAffir

5、mativeCheckthevalue"-"Theoriginalspeedofv0=0Ingeneral,aisthedirectionofacceleration2,theaveragevelocitymethod:ThedefinitionofaveragevelocityOnthenatureofanymotionareapplicableWhileinuniformvariablerectilinearmotionTheaveragespeedofthewholeprocessisequaltotheinstantaneousvelocityofmiddletimeItisatthe

6、beginningandtheendofspeedandhalfThatis:FordisplacementYoucanusethe3,theintermediatevelocitymethodTheinstantaneousvelocityatanytimetmiddletimeisequaltotheaveragespeedofthistimewithintApplicabletoanyuniformvariablerectilinearmotionSomeofthetopicsthatcanbeusedtoavoidthecomplexfunctionwithT2displacement

7、formulalistedinconventionalmethodsInordertosimplifytheprocessofsolvingproblemsToimprovethespeedofsolvingproblems4,theproportionmethodIntheinitialvelocityiszeroinuniformlyacceleratedrectilinearmotionTh