Lab Report 7 - Rotational Motion - Abdul Muqeet Ahmad PHYS 1410-NV1 Navitas PHYSICS 1 Lab Instructors Name Mengying Shi Rotational Motion Partners Name

# Lab Report 7 - Rotational Motion - Abdul Muqeet Ahmad PHYS...

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Abdul Muqeet Ahmad PHYS 1410-NV1 Navitas PHYSICS 1 Lab Instructor’s Name: Mengying Shi Rotational Motion July 29, 2016 Partner’s Name: Huy Quang Huynh The objective of the experiment is to apply known torques ( ) to a system which if free to rotate. The resulting angular acceleration ( ) will be measured and used to determine the Moment of Inertia ( ) of the system.
Results & Analysis: Radius of Spindle, r = 0.0124 m Mass of Platter, M = 1.4193 kg Diameter of Platter, D = 0.218 m ( Radius of Platter, R = 0.109 m) I disk ( ¿ 1 2 M R 2 ) = 8.43 10 3 kg.m 2 Table 1: Data for Moment of Inertia Calculation Applied Mass (m) (kg) Angular Acceleration ( ) (rads.s -2 ) Cord Tension T = m ( g r ) (N) Applied Torque ¿ Tr ( N .m ) 0.035 0.421 0.343 0.004 0.045 0.555 0.441 0.005 0.055 0.680 0.539 0.007 0.065 0.819 0.636 0.008 0.075 0.943 0.734 0.009 0.085 1.077 0.832 0.010 0.095 1.213 0.930 0.012 0.105 1.336 1.027 0.013 0.115 1.472 1.125 0.014 0.125 1.626 1.222 0.015 Sample Calculations We calculate T (N) using the formula Cord Tension T = m ( g r ) and Applied Torque ¿ Tr ( N .m ) When Applied Mass ( m ) ( kg ) = 0.035 and Angular Acceleration ( ) (rads.s -2 ) = 0.421 T ( N ) = m ( g r ) 0.035 ( 9.81 0.421 0.0124 ) = 0.343 N ( N .m ) = Tr 0.343 0.0124 = 0.004 N.m
0.0 0.421 0.555 0.68 0.819 0.943 1.077 1.213 1.336 1.472 1.626
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