# rotation motion lab report 2 - PHY 122 Name Group Number 1...

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PHY 122NameGroup Number: 1Class numberTime: 4/7/2015TA's name:
Objective:To study one of the characteristics of rotation motion with moment of inertia.  Experimental Data:M=433g=.443kgm=20g=.02kgRs=.48cm=.0048mRm=1.43cm=.0143Medium Pulley with Short AxisInitial AngularPosition (θi)initial angularvelocity final angularpositionfinal angularvelocityangular acceleration0radians0rads44.96radians38.92rads16.9±.039rads2Data Analysis: Calculation of the static moment of inertia in the short axisIs=112M(a2+b2)Is=112(.443kg)(.042+.052)Is=112(.443kg) (.0016+.0025)
Is=112(.443kg) (.0041)=1.514104Error Propagation∆a=.00005m∆b=.00005ms=¿(M∆aa6)2+(M∆bb6)2∆ I¿∆ Is=(.443g∗(.00005)∗(.04)6)2+(.443g∗(.00005)∗(.05)6)2s=¿5.591014=±2.36107kgm2∆I¿Calculation of the static moment of inertia in the long axisIs=112M(a2+b2)Is=112(.443kg)(.032+.042)Is=112(.443kg) (.0009+.0016)Is=112(.443kg) (.0025)=9.229105Error Propagation
∆a=.00005m∆b=.00005ms=¿(M∆aa6)2+(M∆bb6)2∆ I¿∆ Is=(.443g∗(.00005)∗(.03)6)2+(.443g∗(.00005)∗(.04)6)2s=¿3.411014=±1.85107kgm2∆I¿ Calculation of the dynamic moment of inertia in the   Short axis   with the