3804_Errata (11.06)

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1、CLASSICALMECHANICSERRATAappearinginthefirstprintingNovember2006Pleasereportanyfurthererrorsbyemailingcm:corrections@btinternet:com1CHAPTER1Problem1.1Firstanswerinpart(i)shouldbe8iC17j26k.CHAPTER2Problem2.18Answersshouldbe:1=21=2!Dbcosta2b2sin2t,speedofCis1abjcostja2b2sin2t.2CHAPTER4

2、Page79BothMandmarepresent.Theyshouldallbem.CHAPTER5Page107Therelationbetween˛andshouldbe˛Dm2.Problem5.8Answershouldbe:Lowerblockleavestheflooraftertime.a=g/1=2cos1.5=6/.Problem5.9QuestionshouldhavesaidtotakegD10ms2.CHAPTER6Problem6.11Questionshouldhavesaidthat“Theblockisnowliftedsothat

3、itsundersideisatheight3a=2abovethefloor....”Problem6.16Questionshouldread:Abeadofmassmcanslideonasmoothcircularwireofradiusa,whichisfixedinaverticalplane.Thebeadisconnectedtothehighestpointofthewirebyalightspringofnaturallength3a=2andstrength˛.Determinethestabilityoftheequilibriumpositionatthe

4、lowestpointofthewireinthecases(i)˛D2mg=a,and(ii)˛D5mg=a.Problem6.20Questionshouldhavestatedthattheinitialspeedoftheparticleisu.Thehintisirrelevant!Answershouldbe:Timetakentohitpostisb2=2au.CHAPTER7Problem7.6Answerforthedistanceofclosestapproachshouldbe
.p2V4C2/1=2=V2.cCambridgeUniversityP

5、ress,20062pProblem7.9Answerforthetimetakenshouldbea2=.22 /.Problem7.23Answer:Velocityboostshouldbegivenattheperigee.Problem7.25Answersshouldbe:vD2:77kmpersecondandapogeeis71,340kmfromtheEarth'ssurface.CHAPTER81.Problem8.13Answershouldbe33cospt3psinptpsin3ptx.t/DCCO2;p214.p21/44.

6、p21/3.9p21/validwhenp¤1;1=3;1=5;:::.2.Problem8.14Thisisactuallyacomputerassistedproblem.CHAPTER10Problem10.7Answersgiveninthequestionrefertothecaseofzerogravity.Withgravityincludedthesebecomeulngandlnu11g2:12Problem10.12Answerismissing.Itshouldread:Theproportionsare2=5,2=5and1=5.

7、Problem10.14Answeriswronglynumberedas10.13.Problem10.15Answerfortherecoilangleshouldbe62ı.CHAPTER11Problem11.17Answerforthereactionatthefloorshouldbe1Mgi1MgjCMgk.66CHAPTER13Problem13.2Inthequestion,JŒyshouldbeJŒx.CHAPTER14Problem14.1Ans