# HW10-solutions.pdf - moss am85383 HW10 de lozanne 55430 ...

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moss (am85383) – HW10 – de lozanne – (55430)1Thisprint-outshouldhave25questions.Multiple-choice questions may continue onthe next column or page – find all choicesbefore answering.001(part1of2)10.0pointsWhat is the total angular momentum of thesystem about thez-axis relative to pointBalongyaxis ifd2= 21 m?002(part2of2)10.0points00310.0pointsAn airplane of mass 998 kg flies level to theground at a constant speed of 175 m/s relative
What is the total angular momentum ofthe system about thez-axis relative to pointAalongyaxis ifd1= 20 m?to the Earth.An observer on the groundalong the path of the plane sees the plane adistance 10125.8 m away at an angle abovethe horizontal of 66.7.What is the magnitude of the airplane’sangular momentum relative to a ground ob-server directly below the airplane?00410.0points
moss (am85383) – HW10 – de lozanne – (55430)2A sticky blob strikes and sticks to a free rod,which is initially at rest, as shown.LetEbe the mechanical energy of the sys-tem,vectorPthe linear momentum of the system,andvectorLthe angular momentum of the system.What is conserved?1.vectorLandE2.vectorPonly3.vectorLonly4.vectorL,vectorP, andE5.vectorPandE6.vectorLandvectorPcorrect00510.0pointsA light, rigid rodl= 5.48 m in length rotatesin thexyplane about a pivot through therod’s center.Two particles of massesm1=8.4 kg andm2= 1.2 kg are connected to itsends.xylvvm2m1Determine the angular momentum of thesystem about the origin at the instant thespeed of each particle isv= 1.87 m/s.

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