   Chapter 8.1, Problem 51E ### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919

#### Solutions

Chapter
Section ### Calculus: An Applied Approach (Min...

10th Edition
Ron Larson
ISBN: 9781305860919
Textbook Problem
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# Speed of Revolution A Blu-ray disc can have an angular speed of up to 62,832 radians per minute.(a) At his angular speed, how many revolutions per minute would the Blu-ray disc make?(b) How long would it take the Blu-ray disc to make 180,000 revolutions?

(a)

To determine

To calculate: The number of revolutions per minute made by disc if the angular speed of disc is 62,832 radians per minute.

Explanation

Given Information:

The angular speed of disc is 62,832 radians per minute.

Formula used:

The angular speed is ω=2πN, where, N is the number of revolutions per minute.

Calculation:

Consider that the number of revolutions per minute be N.

Then, the angular speed of the disc is ω=2πN.

The angular speed ω of disc is 62,832 radians per minute.

Substitute ω=62,832 rad/min in the equation ω=2πN

(b)

To determine

To calculate: The time taken by Blu-ray disc to make 180,000 revolutions if the angular speed of disc is 62,832 radians per minute.

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