Angular Momentum
The momentum of an object is given by multiplying its mass and velocity. Momentum is a property of any object that moves with mass. The only difference between angular momentum and linear momentum is that angular momentum deals with moving or spinning objects. A moving particle's linear momentum can be thought of as a measure of its linear motion. The force is proportional to the rate of change of linear momentum. Angular momentum is always directly proportional to mass. In rotational motion, the concept of angular momentum is often used. Since it is a conserved quantity—the total angular momentum of a closed system remains constant—it is a significant quantity in physics. To understand the concept of angular momentum first we need to understand a rigid body and its movement, a position vector that is used to specify the position of particles in space. A rigid body possesses motion it may be linear or rotational. Rotational motion plays important role in angular momentum.
Moment of a Force
The idea of moments is an important concept in physics. It arises from the fact that distance often plays an important part in the interaction of, or in determining the impact of forces on bodies. Moments are often described by their order [first, second, or higher order] based on the power to which the distance has to be raised to understand the phenomenon. Of particular note are the second-order moment of mass (Moment of Inertia) and moments of force.
![**Express the Angular Velocity of the Second Hand on a Clock in the Following Units:**
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**Part A**
- **Unit**: revolutions per hour (rev/hr)
\[ \omega = \text{(input box)} \, \text{rev/hr} \]
*Description*: Enter the angular velocity in revolutions per hour. Use the provided input box to submit your answer.
- **Buttons**:
- **Submit**: Click to submit your answer.
- **Request Answer**: Click to see the answer if needed.
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**Part B**
- **Unit**: degrees per minute (deg/min)
\[ \omega = \text{(input box)} \, \text{deg/min} \]
*Description*: Enter the angular velocity in degrees per minute. Use the provided input box to submit your answer.
- **Buttons**:
- **Submit**: Click to submit your answer.
- **Request Answer**: Click to see the answer if needed.
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**Part C**
- **Unit**: radians per second (rad/s)
\[ \omega = \text{(input box)} \, \text{rad/s} \]
*Description*: Enter the angular velocity in radians per second. Use the provided input box to submit your answer.
- **Buttons**:
- **Submit**: Click to submit your answer.
- **Request Answer**: Click to see the answer if needed.
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In each part, you have tools such as **Templates** and **Symbols** to assist you in formatting your answer, and functions like **Undo**, **Redo**, **Reset**, and **Keyboard Shortcuts** for convenience in editing your input.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3dae5a27-a228-455d-8cc9-f5b577430088%2Fd6781186-4a21-49cb-915f-d155ebb2120a%2F2iztkw_processed.png&w=3840&q=75)
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