KNR 282 Exam 3.docx

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Department
Kinesiology and Recreation
Course
KNR 282
Professor
Chupp
Semester
Fall

Description
Exam3pbythemeansNotsureifthatsthecorrectanswer1AsdefinedinclassthetermcriticalabilitylackingBReferstoamismatchbetweensomephysicalaspectoftheperformerandtheperformersenvironment2Iftheresultantaccelerationofa2kgballis50msshorizontallytheresultantforceisD100N3InmechanicsaccelerationmaybeusedtodescribeDAlltheabove4The4characteristicsofforceincludeBMagnitudedirectionpointofapplicationlineofaction5Ifabodyhasaninitialvelocityof2000msanditexperienceanaccelerationofsecondswhichofthefollowingstatementsisTRUEAThemagnitudeofthevelocitywillincrease6Whenarunnerhascompletedonefulllaparounda400metertrackwhatistherunnersdisplacementrespecttothestartingpositionCZero7MuscleforcecanbeAapull8ThethreecomponentmodelofmusclerepresentsBAsimplificationofthecomplexanatomyofmusclewhileretainingthecharacteristicsofmuscle9WhichquantitycausesachangeinlinearmomentumAImpulse10IfanunbalancedhorizontalforceisappliedtoabodythatsMOVINGHORIZANTALLYthebodywillENeedmoreinformationtodeterminewhatwillhappen11Ifabaghasmassof25kghowmuchforcemustyouapplyverticallytoliftitoffabaggagecartC250Nmorethan12Ifyoulifeuponthebagwith275NofverticalforcetheaccelerationofthebagwillbeA1mss13Themaximumlimitingfrictionthatcanbegeneratedbetweenthebagandthecartis50NYouneedtoslidethebagtothesideofthecartIfyouapply50NhorizontallyonthebagAitwillremainmotionless
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