A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 4.50 rev/s in 3.20 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
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hw 27 question 2 part b

A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 4.50 rev/s in 3.20 s.
Transcribed Image Text:A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 4.50 rev/s in 3.20 s.
## Physics Problem: Tangential Acceleration of a Rotating Disk

### Part A

**Problem Statement:**

Determine the tangential acceleration of a point on the outer rim of a disk when its angular speed is 2.00 revolutions per second (rev/s).

**Input Field:**

- \( a_t = \) [Insert your value in the box] m/s\(^2\)

**Instructions:**

To calculate the tangential acceleration (\( a_t \)), use the relationship between tangential acceleration, angular acceleration, and radius of the disk. You can use the formula:

\[ a_t = \alpha \cdot r \]

Where:
- \( \alpha \) is the angular acceleration (radians per second squared)
- \( r \) is the radius of the disk (meters)

Note: This exercise assumes you have the necessary context to determine angular acceleration or any other required parameters not specified in the problem statement.

**Submission:**

- Click the "Submit" button to record your answer.
- If you need guidance, select "Request Answer" for assistance.
Transcribed Image Text:## Physics Problem: Tangential Acceleration of a Rotating Disk ### Part A **Problem Statement:** Determine the tangential acceleration of a point on the outer rim of a disk when its angular speed is 2.00 revolutions per second (rev/s). **Input Field:** - \( a_t = \) [Insert your value in the box] m/s\(^2\) **Instructions:** To calculate the tangential acceleration (\( a_t \)), use the relationship between tangential acceleration, angular acceleration, and radius of the disk. You can use the formula: \[ a_t = \alpha \cdot r \] Where: - \( \alpha \) is the angular acceleration (radians per second squared) - \( r \) is the radius of the disk (meters) Note: This exercise assumes you have the necessary context to determine angular acceleration or any other required parameters not specified in the problem statement. **Submission:** - Click the "Submit" button to record your answer. - If you need guidance, select "Request Answer" for assistance.
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