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
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Concept explainers
Rotational Equilibrium And Rotational Dynamics
In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.
Equilibrium of Forces
The tension created on one body during push or pull is known as force.
Question
A child of weight 30 kg (m2) walks along a uniform board of weight 10 kg (m1) and length = 10 m. The board is supported by two legs (symmetry to the center) with negligible weight shown in the figure.
How close (i.e. find x) could the child walk to the right end before the board flips (in m)?
Transcribed Image Text:The image depicts a physical scenario involving a beam, a person, and forces acting on the beam.
### Description:
- **Beam and Forces:**
- The beam is horizontal and supported at two points.
- A person is standing on the beam toward the right side.
- There are two forces labeled as \( mg \) acting downwards from the beam. One is positioned on the left section, and the other is directly beneath the person.
- **Measurements:**
- The distance from the right support of the beam to the person is marked as \( x \).
- The distance from the person to the end of the beam on the right is labeled as \( 1.5 \, \text{m} \).
### Explanation:
This setup can be used to discuss concepts such as torque, balance, and static equilibrium. In physics problems, the weight of the person (\( mg \)) and the distribution of forces will typically be analyzed to ensure the system is in equilibrium or to find unknown variables such as the distance \( x \).
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