Read and Solve carefully please Write clearly and Box the Final answer(s) Express your answer to 3 Significant figures and include appropriate units.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Read and Solve carefully please Write clearly and Box the Final answer(s) Express your answer to 3 Significant figures and include appropriate units.
**Problem Description**

The 25-lb slender rod has a length of 6 ft. Using a collar of negligible mass, its end \( A \) is confined to move along the smooth circular bar of radius \( 3\sqrt{2} \) ft. End \( B \) rests on the floor, for which the coefficient of kinetic friction is \( \mu_B = 0.52 \). The bar is released from rest when \( \theta = 30^\circ \).

**Diagram Explanation**

The figure below represents the problem context:
- A slender rod is positioned at an angle \( \theta = 30^\circ \) with the horizontal.
- End \( A \) is attached to a curved track with a radius of \( 3\sqrt{2} \) ft.
- End \( B \) rests on the horizontal surface.

**Part A:**

Determine the angular acceleration of the bar at this instant, measured clockwise.

- **Instructions:** Express your answer using three significant figures. Enter a positive value if the angular acceleration is clockwise and a negative value if counterclockwise.

- **Answer Field:** \( \alpha = \) [Input Box] rad/s\(^2\)

- Upon submission, the answer \( 4.1753 \) rad/s\(^2\) was found to be incorrect. You have 5 more attempts remaining.

**Feedback Link:** 
- Option for further feedback or assistance is available through a provided link.

This setup explores the dynamics of rotational motion involving friction and path constraints.
Transcribed Image Text:**Problem Description** The 25-lb slender rod has a length of 6 ft. Using a collar of negligible mass, its end \( A \) is confined to move along the smooth circular bar of radius \( 3\sqrt{2} \) ft. End \( B \) rests on the floor, for which the coefficient of kinetic friction is \( \mu_B = 0.52 \). The bar is released from rest when \( \theta = 30^\circ \). **Diagram Explanation** The figure below represents the problem context: - A slender rod is positioned at an angle \( \theta = 30^\circ \) with the horizontal. - End \( A \) is attached to a curved track with a radius of \( 3\sqrt{2} \) ft. - End \( B \) rests on the horizontal surface. **Part A:** Determine the angular acceleration of the bar at this instant, measured clockwise. - **Instructions:** Express your answer using three significant figures. Enter a positive value if the angular acceleration is clockwise and a negative value if counterclockwise. - **Answer Field:** \( \alpha = \) [Input Box] rad/s\(^2\) - Upon submission, the answer \( 4.1753 \) rad/s\(^2\) was found to be incorrect. You have 5 more attempts remaining. **Feedback Link:** - Option for further feedback or assistance is available through a provided link. This setup explores the dynamics of rotational motion involving friction and path constraints.
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