Macmillan Learning Your computer has an optical disk drive that can spin up to 10,000 rpm (which is about 1045 rad/s). If a certain disk is spun at 352.9 rad/s during the time it is being read, and then comes to rest over 0.569 seconds, what is the magnitude of the average angular acceleration of the disk? average angular acceleration: If the disk is 0.12 m in diameter, what is the magnitude of the linear acceleration of a point 1/3 of the way out from the center the disk? linear acceleration: x10 rad/s TOOLS m/s
Macmillan Learning Your computer has an optical disk drive that can spin up to 10,000 rpm (which is about 1045 rad/s). If a certain disk is spun at 352.9 rad/s during the time it is being read, and then comes to rest over 0.569 seconds, what is the magnitude of the average angular acceleration of the disk? average angular acceleration: If the disk is 0.12 m in diameter, what is the magnitude of the linear acceleration of a point 1/3 of the way out from the center the disk? linear acceleration: x10 rad/s TOOLS m/s
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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Question
![**Educational Content on Angular and Linear Acceleration**
---
**Problem Statement:**
Your computer has an optical disk drive that can spin up to 10,000 rpm (which is about 1045 rad/s). If a certain disk is spun at 352.9 rad/s during the time it is being read, and then comes to rest over 0.569 seconds, what is the magnitude of the average angular acceleration of the disk?
- **Average Angular Acceleration:** _______ rad/s²
**Follow-up Question:**
If the disk is 0.12 m in diameter, what is the magnitude of the linear acceleration of a point 1/3 of the way out from the center of the disk?
- **Linear Acceleration:** _______ m/s²
**Additional Tools:**
- A calculator or computational tool might be required to solve for the angular and linear acceleration.
**Guidance:**
1. **Understanding Angular Acceleration:**
- Angular acceleration (\(\alpha\)) can be calculated using the formula:
\[
\alpha = \frac{\Delta \omega}{\Delta t}
\]
where \(\Delta \omega\) is the change in angular velocity and \(\Delta t\) is the time taken for this change.
2. **Understanding Linear Acceleration:**
- Linear acceleration (a) at a radius (r) from the center of rotation is given by:
\[
a = \alpha \times r
\]
- For this problem, calculate \(r = \frac{0.12 \, \text{m}}{2} \times \frac{1}{3}\) since the point is 1/3 of the way from the center.
**Tools Section:**
- The "Tools" dropdown might provide computational assistance, particularly for applying powers of ten in calculations (e.g., \(x10^y\)).
**Calculation Steps:**
1. Calculate \(\Delta \omega\) = \(-352.9 \, \text{rad/s}\) (since it comes to rest, final angular velocity is 0).
2. Divide by the time interval, \(\Delta t = 0.569 \, \text{s}\), to find \(\alpha\).
3. Use \(\alpha\) and the radius to find the linear acceleration of the specified point.
---](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F83ffa3a6-9f99-495b-a71d-d01374311bd2%2Fd9aa18a1-03e8-4af4-ac49-63674fd06bbf%2Flklkwmr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Educational Content on Angular and Linear Acceleration**
---
**Problem Statement:**
Your computer has an optical disk drive that can spin up to 10,000 rpm (which is about 1045 rad/s). If a certain disk is spun at 352.9 rad/s during the time it is being read, and then comes to rest over 0.569 seconds, what is the magnitude of the average angular acceleration of the disk?
- **Average Angular Acceleration:** _______ rad/s²
**Follow-up Question:**
If the disk is 0.12 m in diameter, what is the magnitude of the linear acceleration of a point 1/3 of the way out from the center of the disk?
- **Linear Acceleration:** _______ m/s²
**Additional Tools:**
- A calculator or computational tool might be required to solve for the angular and linear acceleration.
**Guidance:**
1. **Understanding Angular Acceleration:**
- Angular acceleration (\(\alpha\)) can be calculated using the formula:
\[
\alpha = \frac{\Delta \omega}{\Delta t}
\]
where \(\Delta \omega\) is the change in angular velocity and \(\Delta t\) is the time taken for this change.
2. **Understanding Linear Acceleration:**
- Linear acceleration (a) at a radius (r) from the center of rotation is given by:
\[
a = \alpha \times r
\]
- For this problem, calculate \(r = \frac{0.12 \, \text{m}}{2} \times \frac{1}{3}\) since the point is 1/3 of the way from the center.
**Tools Section:**
- The "Tools" dropdown might provide computational assistance, particularly for applying powers of ten in calculations (e.g., \(x10^y\)).
**Calculation Steps:**
1. Calculate \(\Delta \omega\) = \(-352.9 \, \text{rad/s}\) (since it comes to rest, final angular velocity is 0).
2. Divide by the time interval, \(\Delta t = 0.569 \, \text{s}\), to find \(\alpha\).
3. Use \(\alpha\) and the radius to find the linear acceleration of the specified point.
---
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