Action and Reaction Forces: Law & Examples - Study.com

When you push on an object, the object pushes back with an equal force. Think of a pile of books on a table. The weight of the books exerts a ... forTeachers forSchools forWorkingScholars® forCollegeCredit LogIn SignUp Menu forWorkingScholars® forCollegeCredit Plans Plans Courses Courses FindCoursesbySubject Science Math Business Psychology History English SocialScience Humanities Spanish ProfessionalDevelopment ByEducationLevel College HighSchool MiddleSchool TestPrep PopularTests… PopularTests SAT ACT TOEFL GMAT GRE CLEP GED ASVAB RealEstate TeacherCertification… TeacherCertification AEPA CEOE CSET/CBEST FTCE GACE ILTS MTEL MTLE MTTC MoGEA/MEGA NES NYSTCE OAE Praxis RICA TExES VCLA WEST Nursing… NursingTests HESI TEAS NCLEX PAXRN CNE OtherTests… OtherTests AP ASCP ASWB Accuplacer CHSPE CTEL DSST Finance FSA HSPT ISEE MBLEx NCE PERT PHR SHSAT TASC TECEP UExcel Exploreover 4,600 videocourses BrowseAllCourses SAT ACT TOEFL GMAT GRE CLEP GED ASVAB RealEstate AEPA CEOE CSET/CBEST FTCE GACE ILTS MTEL MTLE MTTC MoGEA/MEGA NES NYSTCE OAE Praxis RICA TExES VCLA WEST HESI TEAS NCLEX PAXRN CNE AP ASCP ASWB Accuplacer CHSPE CTEL DSST Finance FSA HSPT ISEE MBLEx NCE PERT PHR SHSAT TASC TECEP UExcel Credit Credit CreditOptions CreditOptions OnlineCollegeCredit HighSchool&GED CertificatesofCompletion HowitWorks TransferCredit TransferCredit AllTransferCredit FindYourSchool CollegeCoursesforCredit TransferringCredit HowItWorks EarnTransferableCredit&GetyourDegreefast Learnmore ContactSupport Copyright LessonTranscript Instructor ElenaCox ExpertContributor AmandaRobb Amandahastaughthighschoolscienceforover10years.ShehasaMaster'sDegreeinCellularandMolecularPhysiologyfromTuftsMedicalSchoolandaMaster'sofTeachingfromSimmonsCollege.Sheisalsocertifiedinsecondaryspecialeducation,biology,andphysicsinMassachusetts. Viewbio Actionandreactionforcesaretwotypesofforcesthatactinpairsandactinoppositedirections.Usingexamplesanddiagrams,learnabouttheseforcepairsandNewton'sThirdLaw. Updated:09/17/2021 Createanaccount WhatAreActionForces?Tobegin,forcesalwaysactinpairsandalwaysactinoppositedirections.Whenyoupushonanobject,theobjectpushesbackwithanequalforce.Thinkofapileofbooksonatable.Theweightofthebooksexertsadownwardforceonthetable.Thisistheactionforce.Thetableexertsanequalupwardforceonthebooks.Thisisthereactionforce.Notethatthetwoforcesactondifferentobjects.Theactionforceactsonthetable,andthereactionforceactsonthebooks. Anerroroccurredtryingtoloadthisvideo. Tryrefreshingthepage,orcontactcustomersupport. YoumustcCreateanaccounttocontinue watching Registertoviewthislesson Areyouastudentorateacher? Iamastudent Iamateacher CreateYourAccountToContinueWatching Asamember,you'llalsogetunlimitedaccesstoover84,000 lessonsinmath,English,science,history,andmore.Plus,getpracticetests,quizzes,andpersonalizedcoachingtohelpyou succeed. Getunlimitedaccesstoover84,000lessons. Tryitnow Itonlytakesafewminutestosetupandyoucancancelanytime. Alreadyregistered?Loginherefor access  Back WhatteachersaresayingaboutStudy.com Tryitnow Alreadyregistered? Loginhereforaccess Comingupnext: WhatisEnergy?-DefinitionandSignificanceinNature You'reonaroll.Keepupthegoodwork! TakeQuiz Watch NextLesson  Replay Justcheckingin.Areyoustillwatching? Yes!Keepplaying. Yournextlessonwillplayin 10seconds 0:04ActionForcesDefined 0:38Newton'sThirdLaw 3:53Action-ReactionDiagrams 4:31Action-ReactionExamples 7:43LessonSummary Save Save Save Wanttowatchthisagainlater? LoginorsignuptoaddthislessontoaCustomCourse. LoginorSignup Timeline Autoplay Autoplay Speed Speed 248Kviews Video Quiz Course 248K views ForcePairsandNewton'sThirdLawNewton'sThirdLawstatesthatforcesalwaysactinpairs.Consideranexampleofaboyplayingwithadog'stoyandwhatitillustrates.Thereisaforcefromtheboyonthedog'stoy,andthereisaforcefromthedog'stoyontheboy.Thesetwoforcescreateaninteractionpair.Forcesalwayscomeinpairssimilartothisexample.Considertheboy(A)asonesystemandthetoy(B)asanother.Whatforcesactoneachofthetwosystems?Picturetheboypullingonatoyandthetoybeingpulledfromtheboy.Youcanseethateachsystemexertsaforceontheother.Thetwoforces-F(AonB)andF(BonA)-aretheforcesofinteractionbetweenthetwo.Noticethesymmetryin:AonBandBonA. TheforcesF(AonB)andF(BonA)areaninteractionpair,whichisasetoftwoforcesthatareinoppositedirections,haveequalmagnitudesandactondifferentobjects.Sometimes,aninteractionpairiscalledanaction-reactionpair.Thismightsuggestthatonecausestheother;however,thisisnottrue.Forexample,theforceoftheboypullingonthetoydoesn'tcausethetoytopullontheboy.Thetwoforceseitherexisttogetherornotatall.Therecanneverbeasingleforceactingalone.Forcesonlycomeinaction-reactionpairs.Thinkcarefullyaboutpropellingaskateboardwithyourfoot.Yourfootpressesbackwardagainsttheground.Theforceactsontheground.However,youmove,soaforcemustactonyou,too.Whydoyoumove?Whatforceactsonyou?Youmovebecausetheactionforceofyourfootagainstthegroundcreatesareactionforceofthegroundagainstyourfoot.You'feel'thegroundbecauseyousensethereactionforcepressingonyourfoot.Thereactionforceiswhatmakesyoumovebecauseitactsonyou. Newton'sThirdLawofMotionexplainsthatforcesalwayscomeinaction-reactionpairs.TheThirdLawstatesthatforeveryactionforce,thereisanequalandoppositereactionforce.Imaginehittingabaseball.Thebatexertsaforceontheball.Thisistheactionforce.Theballexertsanequalandoppositeforceonthebat.Thisisthereactionforce.SuchaninteractionpairisanotherexampleofNewton'sThirdLaw.Thebaseballforcesthebatinonedirectionandthebatforcestheballintheoppositedirection.Thetwoforcescreateaninteractionpairondifferentobjectsandareequalinstrengthandoppositeindirection.Theforce(F)ofA(thebat)onB(theball)isequalinmagnitudeandoppositeindirectionoftheforceofBonA:F(AonB)=-F(BonA).Newtonrealizedthatifoneobjectpullsonanother,thesecondobjectalsopullsbackonthefirstobject.Ifoneobjectpushesonanother,thesecondpushesbackonthefirstobject.Inotherwords,foreveryactionbyaforcethereisareactionbyanotherforce.Action-ReactionPairDiagramsWhensortingoutactionandreactionforces,itishelpfultodrawdiagrams.Draweachobjectapartfromtheother.Representeachforceasanarrowintheappropriatedirection.Theguidelinesonthischartcanhelpyousortoutactionandreactionforces. Considerthesituationofholdingabookinyourhand.Youcandrawonediagramforyouandoneforthebook.Arethereanyinteractionpairs?Youcanusearrowstorepresentforceandthedirectionoftheforce.Inthiscase,theinteractionpairistheforceofthebookonthehandandtheforceofthehandonthebook.Action-ReactionExamplesWe'vegonethroughsomeexamplesalready.Butwhataresomeotheraction-reactionexamples?Let'slookatarocketengine.Newton'sThirdLawexplainshowrocketengineswork.Hotgasesareforcedoutofthebackoftherocket.Thisistheactionforce.Thegasesexertanequalandoppositeforceontherocket.Thisisthereactionforce.Thereactionpushestherocketupwardandofftheground. Alsoconsiderwhathappenswhenadiverjumpsonadivingboard?Theboardspringsbackandforcesthediverintotheair.Theactionforceexertedontheboardbythedivercausesareactionforcebytheboardonthediver.Theforceofthediverontheboardisequalandoppositetotheforceexertedbythedivingboard.Thinkaboutthewaytheforceofthedivingboardaffectsthediver'sperformance.Thegreatertheforceexerteduponthedivingboard,thehigherthedivewillbe. Finally,thinkabouthowacrewteamusesNewton'sThirdLawofMotiontomoveaboat.Whenanoarisputintothewater,thewaterexertsanequalforceonbothsidesoftheoar.However,whenthememberspullontheiroars,thesurfaceoftheflatsideoftheoarspushesagainstthewater.Thewaterpushesbackontheoarswithanequalandoppositeforce.Theboatmovesintheoppositedirectionoftheoarswithaforcethatisequaltothatoftheoarsastheypushagainstthewater.Theboatmovesbecausetheforcesagainstitareunbalanced.Whydoyouthinkitisimportantforallthecrewmemberstopullontheiroarsatthesametime?Wellifthecrewmembersdonotworktogether,theirownforceswillbalanceeachother,decreasingtheoverallunbalancedforcetheyaretryingtoachieve.Arotatingwatersprinklerisanotherexampleofactionandreactionforces.Waterisforcedfromthesprinkler.Thisistheaction.Thereactionisthemovementofthesprinklerarmsawayfromthewater.Youfeelthesamekindofreactionwhenyouholdawaterhoseandturnthewateronquickly.Youmayhaveseenfirefightersstrugglingtocontrolafirehose.Thehoseisforcedbackwardwhenthewaterleavesit.Thisreactionmakesthehosehardtohandle. OctopusandsquidmakeuseofNewton'sThirdLawofMotionaswell.Anoctopusorsquidmovesbyfirstdrawingwaterintoitsbody.Thentheanimalforcefullysqueezeswateroutofitsbodythroughanopeningbehinditshead.Theforceoftheexpelledwatermovestheanimalintheoppositedirection.Here'safinalexamplewhenthinkingaboutNewton'sThirdLawandthenotionthatforcesreactinoppositedirections;youhavejustblownupaballoon.First,holditwiththeopeningdownwardandletgo.Inwhatdirectiondoestheballoonmove?Withtheopeningdownward,theballoonmovesupward.Blowuptheballoonagain,holdithorizontallyandletitgo.Inwhatdirectiondoestheballoonmove?Theballoonwillmovehorizontallyawayfromtheendfromwhichtheairisescaping.Howwouldyouexplainwhybothballoonsdon'tmoveinthesamedirection?Thedirectionofmotionisoppositethedirectionoftheescapingair.LessonSummaryForcesalwaysactinpairs.Newton'sThirdLawofMotionstatesthatforeveryactionforcethereisanequalandoppositereactionforce.Action-reactionpairscanbeseeninallpartsoflife,frombaseballandskateboardingtoseaanimalsandrocketships.Whendiscerninganactionandreactionforceyoumaywanttoconsiderdrawingadiagramthatillustratestheobjectstheforceisactingonandthedirectionofthoseforces.Newton'sThirdLawofMotion Foreveryactionforcethereisanequalandoppositereactionforce Alsocalledaction-reactionpairs Anaction-reactionpairdiagramissometimesusefultodeterminetheactionandreactionforce LearningOutcomesOnceyou'vefinished,youshouldbeableto: RecallNewton'sThirdLawofMotion Explaintherelationshipbetweenactionandreactionforces Giveanexampleofanaction-reactionpair TounlockthislessonyoumustbeaStudy.comMember. Createyouraccount AdditionalActivities Newton'sThirdLawinAction: Thisactivitywillhelpstudentsconceptualizeactionandreactionforcesusinganexamplepresentedinthelesson.Tocompletethisactivity,you'llneedtwostraws,maskingtape,twoballoons,andtwo2mpiecesofstring. Directions: NowthatyouknowaboutNewton'sthirdlaw,it'stimetoputyourknowledgetowork.Here,we'regoingtobebuildingmodelrocketsusingballoonsandlookingattherelationshipbetweenactionandreactionforces. Startbycuttingtwo2mpiecesofstring.Secureoneendofthestringtothewalloradeskwithmaskingtape. Next,blowuptwoballoons,onesmallerthantheother,butdon'ttiethemoff.Tapeonestrawtothetopofeachballoonandholdthemsotheydon'tletouttheair. Threadonestringthroughonestrawandtheotherthroughtheotherstraw.Thencarefully,withoutlettingtheballoonsgo,securetheothersideofthestringtoawall,deskorchairontheothersideoftheroomwithmaskingtake. Dragtheballoonstoonesideandcarefullyletthemfly.Observewhichballoonwentfarther. Questions Whatmadetheballoonsflyforward? Whydidoneballoontravelfartherthantheother? Ourballoonisamodelofarocket.Howitcomparestohowarealrocketshipworks?Whataretheactionandreactionforcesforarealrocket? Registertoviewthislesson Areyouastudentorateacher? Iamastudent Iamateacher UnlockYourEducation Seeforyourselfwhy30millionpeopleuseStudy.com BecomeaStudy.commemberandstartlearningnow. BecomeaMember Alreadyamember?LogIn  Back WhatteachersaresayingaboutStudy.com Tryitnow Alreadyregistered? Loginhereforaccess Createanaccount ActionandReactionForces:Law&Examples Starttoday.Tryitnow Science / UExcelPhysics:StudyGuide&TestPrep UExcelPhysics:StudyGuide&TestPrep 18chapters| 201lessons |13 flashcardsets {{courseNav.course.topics.length}}chapters| {{courseNav.course.mDynamicIntFields.lessonCount}}lessons |{{course.flashcardSetCount}} flashcardset{{course.flashcardSetCoun>1?'s':''}} Ch1. IntroductiontoPhysics Goto IntroductiontoPhysics Ch2. Vectors Goto Vectors Ch3. Kinematics Goto Kinematics Ch4. ForceandtheLawsofMotion Newton'sFirstLawofMotion:ExamplesoftheEffectofForceonMotion 8:25 DistinguishingBetweenInertiaandMass 6:45 MassandWeight:DifferencesandCalculations 5:44 StateofMotionandVelocity 4:40 Force:DefinitionandTypes 7:02 Forces:BalancedandUnbalanced 5:50 Free-BodyDiagrams 4:34 NetForce:DefinitionandCalculations 6:16 Newton'sSecondLawofMotion:TheRelationshipBetweenForceandAcceleration 8:04 DeterminingtheAccelerationofanObject 8:35 DeterminingtheIndividualForcesActingUponanObject 5:41 AirResistanceandFreeFall 8:27 Newton'sThirdLawofMotion:ExamplesoftheRelationshipBetweenTwoForces 4:24 Newton'sLawsandWeight,Mass&Gravity 8:14 IdentifyingActionandReactionForcePairs 8:12 TheNormalForce:DefinitionandExamples 6:21 Friction:DefinitionandTypes 4:15 InclinedPlanesinPhysics:Definition,Facts,andExamples 6:56 Hooke'sLaw&theSpringConstant:Definition&Equation 4:39 CentripetalForce:Definition,Examples&Problems 5:57 ActionandReactionForces:Law&Examples 8:15 Goto ForceandtheLawsofMotion Ch5. WorkandEnergyinPhysics Goto WorkandEnergyinPhysics Ch6. LinearMomentuminPhysics Goto LinearMomentuminPhysics Ch7. RotationalMotion Goto RotationalMotion Ch8. EquilibriumandElasticity Goto EquilibriumandElasticity Ch9. Waves,Sound,andLight Goto Waves,Sound,andLight Ch10. FluidsinPhysics Goto FluidsinPhysics Ch11. ThermodynamicsinPhysics Goto ThermodynamicsinPhysics Ch12. Electrostatics Goto Electrostatics Ch13. CircuitsinPhysics Goto CircuitsinPhysics Ch14. ThePhysicsofMagnetism Goto ThePhysicsofMagnetism Ch15. WaveOptics Goto WaveOptics Ch16. Relativity Goto Relativity Ch17. ModernPhysics&NuclearPhysics Goto ModernPhysics&NuclearPhysics Ch18. UExcelPhysicsFlashcards Goto UExcelPhysicsFlashcards ActionandReactionForces:Law&ExamplesRelatedStudyMaterials RecommendedLessonsandCoursesforYou RelatedLessons RelatedCourses RelatedLessons IdentifyingActionandReactionForcePairs OverviewofNewton'sThirdLawofMotion OverviewofNewton'sSecondLawofMotion Newton'sSecondLaw&UniformCircularMotion OverviewofNewton'sFirstLawofMotion Newton'sThirdLawExamples|WhatisNewton'sThirdLaw? PracticeApplyingNewton'sThirdLaw GamelanDefinition,Music&Instruments|WhatisGamelanMusic? Newton'sLawsofMotion&Force:Overview&Examples|WhatareNewton'sLawsofMotion? LawofInertiaFormulaandProperty DistinguishingBetweenInertiaandMass WhatisNormalForce?-LessonforKids VietnameseMusic:Instruments&Types UniformCircularMotionEquations&Examples|WhatisUniformCircularMotion? TypesofGeneticDisorders:Definitions&Symptoms Fusevs.CircuitBreaker|Overview,Differences&Uses Forces:BalancedandUnbalanced Free-BodyDiagrams Newton'sSecondLawofMotion:Equation&Examples|WhatisNewton'sSecondLaw? DeterminingtheAccelerationofanObject RelatedCourses APPhysicsC-Mechanics:ExamPrep APPhysics1:ExamPrep APBiology:ExamPrep FundamentalsofNursing Physics:HighSchool SupplementalScience:StudyAid UExcelAnatomy&Physiology:StudyGuide&TestPrep IntroductiontoBiology:CertificateProgram UExcelMicrobiology:StudyGuide&TestPrep UExcelEarthScience:StudyGuide&TestPrep DSSTEnvironmentalScience:StudyGuide&TestPrep PhysicalGeology:CertificateProgram DSSTHealth&HumanDevelopment:StudyGuide&TestPrep PrinciplesofHealth:CertificateProgram IntroductiontoEnvironmentalScience:HelpandReview UExcelScienceofNutrition:StudyGuide&TestPrep PrenticeHallEarthScience:OnlineTextbookHelp NYRegentsExam-Chemistry:HelpandReview GlencoeEarthScience:OnlineTextbookHelp NYRegentsExam-LivingEnvironment:HelpandReview Related RecentlyUpdated Popular ExploreSubjects HomeworkHelp BrowsebyCourses CollegeBiology:HelpandReview UExcelMicrobiology:StudyGuide&TestPrep ILTSScience-EnvironmentalScience(112):TestPracticeandStudyGuide SATSubjectTestChemistry:PracticeandStudyGuide ILTSScience-Chemistry(106):TestPracticeandStudyGuide PraxisEnvironmentalEducation(0831):PracticeandStudyGuide FTCEEarth&SpaceScience6-12(008):TestPractice&StudyGuide CSETScienceSubtestIIEarthandSpaceSciences(219):TestPrep&StudyGuide APBiology:TutoringSolution IntroductiontoEnvironmentalScience:CertificateProgram CLEPNaturalSciences:StudyGuide&TestPrep IntroductiontoNaturalSciences:CertificateProgram PhysicalGeology:CertificateProgram CLEPChemistry:StudyGuide&TestPrep IntroductiontoEnvironmentalScience:HelpandReview BrowsebyLessons Calculating1Stoneinkg Converting1oz.toGrams Converting60cmtoInches:How-To&Steps ConvertingAcrestoHectares:How-To&Steps Plutonium:Definition,Uses&Facts BasicChemistryTerms MedicinalChemistry:Definition&Research AbsorptionSpectroscopy:Definition&Types TheAufbauPrinciple AbsoluteConfiguration:Rules&Example Hydrogen:Properties&Occurrence Francium:Definition&Uses WhatisAerogel?-Structure,Composition&Facts Aerogel:Uses&MechanicalProperties LimitingReactantPracticeProblems LatestCourses TExESScienceofTeachingReading(293):Practice&StudyGuide NextGenNCLEX-PNStudyGuide&Practice NextGenNCLEX-RNStudyGuide&Practice TExESCoreSubjectsEC-6(391):Practice&StudyGuide TExESSchoolCounselor(252):Practice&StudyGuide AbouttheVCLATests AbouttheTExESExams AbouttheRICAExam AboutthePraxisTests AbouttheOSATTests HowtoPickYourHomeschoolCurriculum RoleofStudentSupportinOpen&DistanceLearning TExESPrincipalExamRedesign(068vs.268) TeacherSalarybyState ESLResourceGuideforTeachers WhatisaHomeschoolCo-op? HowtoStartHomeschoolingYourChildren LatestLessons Mechanistic&OrganicOrganizationalBusinessStructures ChemicalNomenclature&Notation FactorsImpactingFamily&ConsumerSciences HeritabilityCoefficient Sheldonv.Sill:CaseBrief&Facts AIBN:MolecularWeight,Half-Life&Solubility CollectingandAnalyzingfromtheRespiratorySystem Quiz&Worksheet-CommonHealthProblemsintheUS WhatareDinosaursRelatedto?-Quiz&WorksheetforKids Quiz&Worksheet-MemoryHolein1984 Quiz&Worksheet-TypesofPersonalityDisorders Flashcards-RealEstateMarketingBasics Flashcards-PromotionalMarketinginRealEstate Rubrics|RubricDefinitionandTypes 5thGradeMathWorksheets&Printables PopularCourses CLEPIntroductoryBusinessLaw:StudyGuide&TestPrep IntroductiontoEnvironmentalScience:CertificateProgram NYRegentsExam-Geometry:TutoringSolution GACEBehavioralScience(550):Practice&StudyGuide MTTCBusiness,Management,Marketing&Technology(098):Practice&StudyGuide IntroductiontoOrganicChemistryfortheMCAT:TutoringSolution BasicsofAtoms,Elements&thePeriodicTable Quiz&Worksheet-FindingtheMaximumValueofaFunction Quiz&Worksheet-HowtoConvert1MiletoMeters Quiz&Worksheet-SculptureoftheNeoclassical,19th-Century&ModernEra Quiz&Worksheet-TheExpressionofCultureinLiterature Quiz&Worksheet-RogerChillingworthintheScarletLetter PopularLessons Arbitrator:Definition,Role&Qualifications ACenturyofDishonor:Summary&Author AccessibilityandDisabilityAccommodationsatStudy.com Curriculum-BasedAssessmentExamples Study.com'sBachelor'sDegreeinBusiness:DegreePlan CurriculumResourcesforHighSchoolTeachers MultiplicationGamesforKids Electionof1800LessonPlan FigurativeLanguageLessonPlan SchoolClosuresinVirginiaDuetoCoronavirus:LearningOnlineinVAWhenSchoolsClose PersuasiveWritingActivities FTCESocialScience6-12:PassingScore Math Math-Videos Math-Quizzes Math-Questions&Answers SocialSciences SocialSciences-Videos SocialSciences-Quizzes SocialSciences-Questions&Answers Science Science-Videos Science-Quizzes Science-Questions&Answers Business Business-Videos Business-Quizzes Business-Questions&Answers Humanities Humanities-Videos Humanities-Quizzes Humanities-Questions&Answers Education Education-Videos Education-Quizzes Education-Questions&Answers History History-Videos History-Quizzes History-Questions&Answers ArtandDesign ArtandDesign-Videos ArtandDesign-Quizzes ArtandDesign-Questions&Answers TechandEngineering TechandEngineering-Videos TechandEngineering-Quizzes TechandEngineering-Questions&Answers HealthandMedicine HealthandMedicine-Videos HealthandMedicine-Quizzes HealthandMedicine-Questions&Answers DeterminethereactionsAandBwhen(a)\alpha=0^{\circ}(b)\alpha=90^{\circ}(c)\alpha=30^{\circ} Theuniform9-ftpoleweighs140lbandissupportedasshownbelow.CalculatetheforcePrequiredtomovethepoleifthecoefficientoffrictionforeachcontactlocationis0.39 DeterminethetensioninthecablesothatthereactionforceatAproducesa366N-mmomentaboutthepointP. Thebrasswirehasatriangularcross-section,2m. ConsidertheframeshowninFigure.SupposethatP=320NandM=640N-m.DeterminethexandycomponentsofreactionatpinCusingscalarnotation. A10ftboomisacteduponbyaloadasshown.Iftheloadis1100lb,thencalculatethetensionineachcableandthereactionattheballandsocketjointatA. 100myosinmoleculesarepullinghorizontally,andinthesamedirection,onanactinmoleculewith5pNeach.Whatisthenetforcebeinggeneratedontheactinmolecule?Whatforcedoestheactinge Fortheframeshown,determinethereactiononthecollaratAandthepinatC.Thecollarfitsoverasmoothrod,androdABisfixedconnectedtothecollar. AforceandacoupleareappliedontheT-shapebar.Thespringisstretched12mmwhenthebodyisinthepositionshown,andcontactatCissmooth.DeterminethemagnitudeofthereactionatpinO Pin-connectedmembersADBandCDcarryaloadWappliedbyacable-pulleyarrangement,asshown.Determine(a)ThecomponentsofthereactionsatAandC(b)Theaxialforce,shearforce,andmoment Createanaccounttostartthiscoursetoday Usedbyover30millionstudentsworldwide Createanaccount Likethislesson Share Exploreourlibraryofover84,000 lessons Search Browse Browsebysubject CollegeCourses Business English ForeignLanguage History Humanities Math Science SocialScience SeeAllCollegeCourses HighSchoolCourses AP CommonCore GED HighSchool SeeAllHighSchoolCourses OtherCourses College&CareerGuidanceCourses CollegePlacementExams EntranceExams GeneralTestPrep K-8Courses SkillsCourses TeacherCertificationExams SeeAllOtherCourses Upgradetoenroll × Enrollinginacourseletsyouearnprogressbypassingquizzesandexams. Trackcourseprogress Takequizzesandexams Earncertificatesofcompletion Youwillalsobeableto: CreateaGoal Createcustomcourses Getyourquestionsanswered UpgradetoPremiumtoaddallthesefeaturestoyouraccount! UpgradeNow UpgradetoPremiumtoaddallthesefeaturestoyouraccount!