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Preface
Thisbookisbasedonacademiclecturesgivenforalongtimebytheauthorto
undergraduatestudentsattheFacultyofAutomotiveandConstructionMachinery
EngineeringoftheWarsawUniversityofTechnology.Theentirecourseof
TheoreticalMechanicsisdividedintotwopartstaughtinthesecondandthird
semesterofstudy.Eachpartincludes15lectures.Themainobjectiveofboththe
lectureandthebookistoprovidestudentswiththenecessaryknowledgeand
skillstosolvemechanicalproblemsofstatic,kinematicordynamicnaturethat
canoccurintheirengineeringjoborearlier–duringstudies–withintheirsemes-
terordiplomaprojects.
Makingdecisionsaboutthecontentsoftheprintedmaterialwasbasedonthe
assumptionthatthebookwouldnotcontainanysupplementarytopicsnotre-
quiredwithinthecourseofMechanicsitisassociatedwith.Nevertheless,the
bookisintendedtobeversatileenoughastoservestudentsofanyacademicpro-
gramofmechanicalengineeringatatechnicaluniversity.Theexistingrichlit-
eratureonMechanicsincludingmonographsandnumerousacademictext-books
isnotreflectedintheReferences,wherejustseveralworksareincluded,firstof
alltooutlinedifferentapproachesandmethodologiesofpresentingthetheoreti-
calissuesandsolvingpracticalproblems.Readersareencouragedtoexplorethe
knowledgebehindtheframesofthisbook,notonlytolearnmoreprinciplesand
problemsinMechanicsbutalsotocompareprogramsofteaching,methodsand
tools,findmoremotivationtodeveloptheirengineeringcriticismandcreativity.
Fromthemethodologicalpointofview,itshouldbeemphasizedthatinthis
book(andinthecorrespondingacademiclecture)thegeneralruleisappliedtopro-
ceedfrom“thegeneral”to“theparticular”.Forinstance,instaticswefirstcon-
siderandanalyzereductionofthemostgeneralspatialsystemofforcesactingon
abodyandthenproceedtothespecialcasesofin-planeforces,parallelforces,
concurrentforcesandfinallytothesystemofforcesequivalenttozero,whichleads
tothegeometricconditionsofequilibriumofabody.Theonlyexceptiontothe
aboveruleisproceedingfromaparticle(“particular”)toarigidbody(“general”),
whichisanaturalconsequenceofdevelopingthesecondNewton’slawofmo-
tionintolinearmomentumandangularmomentumlaws,validforarigidbody.
Problemsofstatics,kinematicsanddynamicsofparticlesandrigidbodiesare
analyzedseparatelytoreflectpracticalproblemsandshowdomainsofdifferent
Preface
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