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ID:33189785
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时间:2019-02-21
《constant velocity and uniform acceleration等速和等加速度》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、ConstantVelocityandUniformAcceleration1.BillisontheroofoftheCircleK,anddropsastone5.0mabovethesurfaceoftheparkinglot.Tedisintheparkinglot,andthrowsastoneupwardat8.0m/s,releasingit2.0mabovethesurfaceoftheparkinglot.Writepositionvstimeequationsofmotionforeachstone,afterthestonesarereleased.2.S
2、ketchqualitativepositionversustime,velocityversustime,andaccelerationversustimegraphsforthemotionofthetwostonesinthepreviousproblem.TeacherExcellenceWorkshopSeries3PeggyBertrandConstantVelocityandUniformAcceleration1.Achildridesabicyclebackandforthinfrontofherhouse.Shepedals10meterstotheeast
3、in10seconds,turnsthebicyclearoundin5seconds,andthenpedals12meterstothewestin15seconds.Drawpositionversustimeandvelocityversustimegraphsofhereast-westmotion.TeacherExcellenceWorkshopSeries3PeggyBertrandConstantVelocityandUniformAcceleration2006B2(15points)Aworld-classrunnercancompletea100mdas
4、hinabout10s.Paststudieshaveshownthatrunnersinsucharaceaccelerateuniformlyforatimetuandthenrunatconstantspeedfortheremainderoftherace.Aworld-classrunnerisvisitingyourphysicsclass.Youaretodevelopaprocedurethatwillallowyoutodeterminetheuniformaccelerationauandanapproximatevalueoftufortherunneri
5、na100mdash.Bynecessityyourexperimentwillbedoneonastraighttrackandincludeyourwholeclassofelevenstudents.(a)Bycheckingthelinenexttoeachappropriateiteminthelistbelow,selecttheequipment,otherthantherunnerandthetrack,thatyourclasswillneedtodotheexperiment._____Stopwatches_____Tapemeasures_____Rul
6、ers_____Maskingtape_____Metersticks_____Starter’spistol_____String_____Chalk(b)Outlinetheprocedurethatyouwouldusetodetermineauandtu,includingalabeleddiagramoftheexperimentalsetup.Usesymbolstoidentifycarefullywhatmeasurementsyouwouldmakeandincludeinyourprocedurehowyouwoulduseeachpieceoftheequ
7、ipmentyoucheckedinpart(a).(c)Outlinetheprocessofdataanalysis,includinghowyouwillidentifytheportionoftheracethathasuniformacceleration,andhowyouwouldcalculatetheuniformacceleration.TeacherExcellenceWorkshopSeries3PeggyBertrand
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