College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question

1) A student measures the acceleration of a disk with 12 cm radius. She attaches a 200 g mass to the string and winds it around a 1 cm radius axle. When the mass drops, the tension from its weight creates an angular acceleration of 1.24 radians/s2 on the disk. (This refers to sections 1.1 through 1.4 and utilizes the equations in the theory.) a) Calculate the moment of inertia of the disk. b) Calculate the mass of the disk. 2) She adds the cylinder with inner and outer radii are 5 and 5.7 cm respectively. Using the same mass and axle radius as before she measures a new angular acceleration of 1.15 radians/s2 . a) Calculate the moment of inertia of the disk and cylinder together. b) Calculate the moment of inertia of the cylinder by itself. c) Calculate the mass of the cylinder.

 

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