OER 2016 Edition

ISBN: 9781947172173

Author: OpenStax

Publisher: OpenStax College

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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.

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Textbook Question

Chapter 9, Problem 9PE

A person carries a plank of wood 2.00 m long with one hand pushing down on it at one end with a force F₁ and the other hand holding it up at .500 m from the end of the plank with force F₂. If the plank has a mass of 20.0 kg and its center of gravity is at the middle of the plank, what are the magnitudes of the forces F₁ and F₂?

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Chapter 9, Problem 8PE

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Chapter 9 Solutions

College Physics

Ch. 9 - What can you say about the velocity of a moving...Ch. 9 - Under what conditions can a rotating body be in...Ch. 9 - What three factors affect the torque created by a...Ch. 9 - A wrecking ball is being used to knock down a...Ch. 9 - Mechanics put a length of Pipe over the handle of...Ch. 9 - Prob. 6CQ Ch. 9 - Explain the need for tall towers on a suspension...Ch. 9 - When visiting some countries, you may see a person...Ch. 9 - Prob. 9CQ Ch. 9 - Prob. 10CQ

Ch. 9 - Why are the forces exerted on the outside world by...Ch. 9 - Explain why the forces in our joints are several...Ch. 9 - Why are the forces exerted on the outside world by...Ch. 9 - Explain why the forces in our joints are several...Ch. 9 - Certain of dinosaurs were bipedal (walked on two...Ch. 9 - Swimmers and athletes during competition need to...Ch. 9 - If the maximum force the biceps muscle can exert...Ch. 9 - Suppose the biceps muscle was attached through...Ch. 9 - Explain one of the reasons why pregnant women...Ch. 9 - (a) When opening a door, you push on it...Ch. 9 - When tightening a bolt, you push perpendicularly...Ch. 9 - Two children push on opposite sides of a door...Ch. 9 - Use the second condition for equilibrium (net =0 )...Ch. 9 - Repeat the seesaw problem in Example 9.1 with the...Ch. 9 - Prob. 6PE Ch. 9 - Two children of mass 20.0 kg and 30.0 kg sit...Ch. 9 - Prob. 8PE Ch. 9 - A person carries a plank of wood 2.00 m long with...Ch. 9 - Prob. 10PE Ch. 9 - Prob. 11PE Ch. 9 - Prob. 12PE Ch. 9 - Prob. 13PE Ch. 9 - Prob. 14PE Ch. 9 - Prob. 15PE Ch. 9 - Prob. 16PE Ch. 9 - To get up on the roof, a person (mass 70.0 kg)...Ch. 9 - Prob. 18PE Ch. 9 - Prob. 19PE Ch. 9 - Suppose you needed to raise a 250-kg mower a...Ch. 9 - Prob. 21PE Ch. 9 - Prob. 22PE Ch. 9 - Prob. 23PE Ch. 9 - Prob. 24PE Ch. 9 - Prob. 25PE Ch. 9 - Prob. 26PE Ch. 9 - Prob. 27PE Ch. 9 - Prob. 28PE Ch. 9 - Prob. 29PE Ch. 9 - Prob. 30PE Ch. 9 - Prob. 31PE Ch. 9 - Prob. 32PE Ch. 9 - Prob. 33PE Ch. 9 - Prob. 34PE Ch. 9 - Prob. 35PE Ch. 9 - Integrated Concepts Suppose we replace the 4.0-kg...Ch. 9 - Prob. 37PE Ch. 9 - You have just planted a sturdy 2-m-tall palm tree...Ch. 9 - Unreasonable Results Suppose two children are...Ch. 9 - Construct Your Own Problem Consider a method for...Ch. 9 - Prob. 1TP Ch. 9 - Prob. 2TP Ch. 9 - Prob. 3TP Ch. 9 - Prob. 4TP Ch. 9 - Prob. 5TP Ch. 9 - Prob. 6TP Ch. 9 - Prob. 7TP Ch. 9 - Prob. 8TP Ch. 9 - Prob. 9TP Ch. 9 - Prob. 10TP Ch. 9 - Prob. 11TP

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