College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:A turntable of radius R=2.00 m and mass M=32.0 kg rotates counterclockwise in a horizontal plane with an initial angular speed of 4x rad/s. The fixed turntable bearing is frictionless. The turn table is
in the shape of a uniform disc with the moment of inertia of this turntable being I
0.5*MR?.
(a) What is the magnitude of angular momentum of this turntable? Answer: 803.84
(b) What is the (magnitude of) the momentum of this turntable? Answer: 401.92
kgm2/s?
X kgm/s?
Now a lump of clay of mass m=2.48 kg and negligible size is dropped onto the turntable from a small distance above it and immediately sticks to a point 1.90 m from the axis
(c) Find the final angular speed of the clay and turntable. Answer: 12.386
X rad/s
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