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1、AP®PhysicsC2004FreeResponseQuestionsThematerialsincludedinthesefilesareintendedfornoncommercialusebyAPteachersforcourseandexampreparation;permissionforanyotherusemustbesoughtfromtheAdvancedPlacementProgram®.Teachersmayreproducethem,inwholeorinpart,inlimitedquantities,forface-to-faceteachin
2、gpurposesbutmaynotmassdistributethematerials,electronicallyorotherwise.Thispermissiondoesnotapplytoanythird-partycopyrightscontainedherein.Thesematerialsandanycopiesmadeofthemmaynotberesold,andthecopyrightnoticesmustberetainedastheyappearhere.TheCollegeBoardisanonprofitmembershipassociatio
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4、hmajorprogramsandservicesincollegeadmissions,guidance,assessment,financialaid,enrollment,andteachingandlearning.Amongitsbest-knownprogramsaretheSAT®,thePSAT/NMSQT®,andtheAdvancedPlacementProgram®(AP®).TheCollegeBoardiscommittedtotheprinciplesofequityandexcellence,andthatcommitmentisembodie
5、dinallofitsprograms,services,activities,andconcerns.Forfurtherinformation,visitwww.collegeboard.comCollegeBoard,AdvancedPlacementProgram,AP,SAT,andtheacornlogoareregisteredtrademarksoftheCollegeEntranceExaminationBoard.2004M1.AropeoflengthLisattachedtoasupportatpointC.Apersonofmassm1sitson
6、aledgeatpositionAholdingtheotherendoftheropesothatitishorizontalandtaut,asshownabove.ThepersonthendropsofftheledgeandswingsdownontheropetowardpositionBonalowerledgewhereanobjectofmassm2isatrest.AtpositionBthepersongrabsholdoftheobjectandsimultaneouslyletsgooftherope.Thepersonandobjectthenl
7、andtogetherinthelakeatpointD,whichisaverticaldistanceLbelowpositionB.Airresistanceandthemassoftheropearenegligible.Deriveexpressionsforeachofthefollowingintermsofm1,m2,L,andg.a.Thespeedofthepersonjustbeforethecollisionwiththeobjectb.Thetensionintheropejustbefo
