The car A has a forward speed of 21 km/h and is accelerating at 3.0 m/s². Determine the velocity and acceleration of the car relative to observer B, who rides in a nonrotating chair on the Ferris wheel. The angular rate = 3.2 rev/min of the Ferris wheel is constant.
The car A has a forward speed of 21 km/h and is accelerating at 3.0 m/s². Determine the velocity and acceleration of the car relative to observer B, who rides in a nonrotating chair on the Ferris wheel. The angular rate = 3.2 rev/min of the Ferris wheel is constant.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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- The Ferris wheel has a radius \( R = 8.4 \) m.
- The angle at which the observer B is located from the horizontal axis is 44°.
- The Ferris wheel has an angular rate \( \Omega = 3.2 \) rev/min.
- The car A is moving along a straight path on the ground.
**Given:**
- Forward Speed of Car A: 21 km/h (convert to m/s: \( 21 \times \frac{1000}{3600} = 5.83 \) m/s)
- Acceleration of Car A: 3.0 m/s²
- Radius of Ferris wheel: \( R = 8.4 \) m
- Angular rate: \( \Omega = 3.2 \) rev/min (convert to rad/s: \( 3.2 \times \frac{2\pi}{60} = 0.335 \) rad/s)
- Angle: 44°
### Answers:
**Velocity ( \(v_{A/B}\) ):**
\[ v_{A/B} = \begin{pmatrix} 3.878 \\ 2.025 \end{pmatrix} \text{ m/s} \]
**Acceleration ( \(a_{A/B}\) ):**
\[ a_{A/B} = \begin{pmatrix} 3.723 \\ -0.606 \end{pmatrix} \text{ m/s}² \]
### Explanation of the Diagram:
1. **Ferris Wheel**: The large circle represents the Ferris wheel. The radius of the wheel is labeled as \( R = 8.4 \) m.
2. **Car A**: The car is shown on a straight path at the base of the Ferris wheel.
3. **Observer B**: Located at an angle of 44° above the horizontal axis on the Ferris wheel.
4. **Angular Rate**: Indicated as](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe33107d8-7e4c-42e3-bde6-e02cc2392684%2F27a886fe-9db7-4250-b6c3-2ec9a1e3dd1a%2Fcgzjlrc_processed.png&w=3840&q=75)
Transcribed Image Text:### Ferris Wheel Car Problem
**Problem Statement:**
The car A has a forward speed of 21 km/h and is accelerating at 3.0 m/s². Determine the velocity and acceleration of the car relative to observer B, who rides in a non-rotating chair on the Ferris wheel. The angular rate Ω = 3.2 rev/min of the Ferris wheel is constant.
**Diagram:**

- The Ferris wheel has a radius \( R = 8.4 \) m.
- The angle at which the observer B is located from the horizontal axis is 44°.
- The Ferris wheel has an angular rate \( \Omega = 3.2 \) rev/min.
- The car A is moving along a straight path on the ground.
**Given:**
- Forward Speed of Car A: 21 km/h (convert to m/s: \( 21 \times \frac{1000}{3600} = 5.83 \) m/s)
- Acceleration of Car A: 3.0 m/s²
- Radius of Ferris wheel: \( R = 8.4 \) m
- Angular rate: \( \Omega = 3.2 \) rev/min (convert to rad/s: \( 3.2 \times \frac{2\pi}{60} = 0.335 \) rad/s)
- Angle: 44°
### Answers:
**Velocity ( \(v_{A/B}\) ):**
\[ v_{A/B} = \begin{pmatrix} 3.878 \\ 2.025 \end{pmatrix} \text{ m/s} \]
**Acceleration ( \(a_{A/B}\) ):**
\[ a_{A/B} = \begin{pmatrix} 3.723 \\ -0.606 \end{pmatrix} \text{ m/s}² \]
### Explanation of the Diagram:
1. **Ferris Wheel**: The large circle represents the Ferris wheel. The radius of the wheel is labeled as \( R = 8.4 \) m.
2. **Car A**: The car is shown on a straight path at the base of the Ferris wheel.
3. **Observer B**: Located at an angle of 44° above the horizontal axis on the Ferris wheel.
4. **Angular Rate**: Indicated as
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