Suppose manufacturers increased the size of compact discs so they were made of the same material and had the same thickness but had twice the diameter. How much bigger would the moment of inertia be? Select one: a. 2 times b. 4 times c. 8 times d. 16 timés

Suppose manufacturers increased the size of compact discs so they were made of the same material and had the same thickness but had twice the diameter. How much bigger would the moment of inertia be? Select one: a. 2 times b. 4 times c. 8 times d. 16 timés

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section8.2: Rotational Dynamics

Problem 22PP

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

Suppose manufacturers increased the size of compact discs so they were made of the same material and had the same thickness but had
twice the diameter. How much bigger would the moment of inertia be?
Select one:
a. 2 times
b. 4 times
C. 8 times
d. 16 times

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