**Problem 11.135**A bull-roarer is a piece of wood that produces a roaring sound when attached to the end of a string and whirled around in a circle. Determine the magnitude of the normal acceleration of a bull-roarer when it is spun in a circle of radius 0.9 m at a speed of 20 m/s.---**Diagram Description:**The diagram shows a person swinging a bull-roarer in a horizontal circular motion. The circle's radius is labeled as 0.9 meters. The velocity of the bull-roarer, denoted as \( v_0 \), is shown as an arrow pointing tangentially to the circle, indicating the direction of the motion. ---**Explanation:**To find the normal acceleration (\( a_n \)) of the bull-roarer, you can use the formula for centripetal acceleration:\[ a_n = \frac{v^2}{r} \]Where:- \( v \) is the tangential speed (20 m/s)- \( r \) is the radius of the circle (0.9 m)Plug in the given values to calculate the normal acceleration.

Write the given data. R=0.9 mv=20 m/s

A bull-roarer is a piece of wood that produces a roaring sound when attached to the end of a string and whirled around in a circle. Determine the magnitude of the normal acceleration of a bull-roarer when it is spun in a circle of radius 0.9 m at a speed of 20 m/s. 0.9 m

A bull-roarer is a piece of wood that produces a roaring sound when attached to the end of a string and whirled around in a circle. Determine the magnitude of the normal acceleration of a bull-roarer when it is spun in a circle of radius 0.9 m at a speed of 20 m/s. 0.9 m

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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Die Stock

Die stock is expressed as the type of component which is utilized for fitting purposes while creating or shaping uniform threads on tubes, pipes, or screws. The die stock (die handle) has three screws around the adjustable part of a particular machine that helps to locate the die. Also, die stock can endure on a variety of hex and split adjustable dies of several dimensions. One of the primary reasons for using die stock in industries is because die stock can be operated by hands. Commonly, it is made up of high carbon steel.

Question

**Problem 11.135**

A bull-roarer is a piece of wood that produces a roaring sound when attached to the end of a string and whirled around in a circle. Determine the magnitude of the normal acceleration of a bull-roarer when it is spun in a circle of radius 0.9 m at a speed of 20 m/s.

---

**Diagram Description:**

The diagram shows a person swinging a bull-roarer in a horizontal circular motion. The circle's radius is labeled as 0.9 meters. The velocity of the bull-roarer, denoted as \( v_0 \), is shown as an arrow pointing tangentially to the circle, indicating the direction of the motion.

---

**Explanation:**

To find the normal acceleration (\( a_n \)) of the bull-roarer, you can use the formula for centripetal acceleration:

\[ a_n = \frac{v^2}{r} \]

Where:
- \( v \) is the tangential speed (20 m/s)
- \( r \) is the radius of the circle (0.9 m)

Plug in the given values to calculate the normal acceleration.

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