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Problem

The horizontal bar $B E H$ is connected to three …

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Problem 94 Easy Difficulty

Two bars are attached to a single spring of constant $k$ that is unstretched when the bars are vertical. Determine the range of values of $P$ for which the equilibrium of the system is stable in the position shown.

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Related Courses

Physics 101 Mechanics
Vector Mechanics for Engineers: Statics and Dynamics

Chapter 10

Method of Virtual Work

Related Topics

Work

Potential Energy

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Top Physics 101 Mechanics Educators
Elyse Gonzalez

Cornell University

Christina Krawiec

Rutgers, The State University of New Jersey

LB
Liev Birman
Zachary Mitchell

Hope College

Physics 101 Mechanics Courses

Lectures

Video Thumbnail

02:08
Work and Energy - Intro

In physics, work is the transfer of energy by a force acting through a distance. The "work" of a force F on an object that it pushes is defined as the product of the force and the distance through which it moves the object. For example, if a force of 10 newtons (N) acts through a distance of 2 meters (m), then doing 10 joules (J) of work on that object requires exerting a force of 10 N for 2 m. Work is a scalar quantity, meaning that it can be described by a single number-for example, if a force of 3 newtons acts through a distance of 2 meters, then the work done is 6 joules. Work is due to a force acting on a point that is stationary-that is, a point where the force is applied does not move. By Newton's third law, the force of the reaction is equal and opposite to the force of the action, so the point where the force is applied does work on the person applying the force. In the example above, the force of the person pushing the block is 3 N. The force of the block on the person is also 3 N. The difference between the two forces is the work done on the block by the person, which can be calculated as the force of the block times the distance through which it moves, or 3 N × 2 m = 6 J.

Video Thumbnail

03:23
Mechanical Energy - Intro

In physics, mechanical energy is the sum of the kinetic and potential energies of a system.
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Ferdinand Beer, Jr., E. Russell Johnston, David Mazurek

Vector Mechanics for Engineers: Statics and Dynamics

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Related Topics

Work

Potential Energy
Top Physics 101 Mechanics Educators
Elyse Gonzalez

Cornell University

Christina Krawiec

Rutgers, The State University of New Jersey

LB
Liev Birman

Numerade Educator

Zachary Mitchell

Hope College

Physics 101 Mechanics Courses

Lectures

Video Thumbnail

02:08
Work and Energy - Intro

In physics, work is the transfer of energy by a force acting through a distance. The "work" of a force F on an object that it pushes is defined as the product of the force and the distance through which it moves the object. For example, if a force of 10 newtons (N) acts through a distance of 2 meters (m), then doing 10 joules (J) of work on that object requires exerting a force of 10 N for 2 m. Work is a scalar quantity, meaning that it can be described by a single number-for example, if a force of 3 newtons acts through a distance of 2 meters, then the work done is 6 joules. Work is due to a force acting on a point that is stationary-that is, a point where the force is applied does not move. By Newton's third law, the force of the reaction is equal and opposite to the force of the action, so the point where the force is applied does work on the person applying the force. In the example above, the force of the person pushing the block is 3 N. The force of the block on the person is also 3 N. The difference between the two forces is the work done on the block by the person, which can be calculated as the force of the block times the distance through which it moves, or 3 N × 2 m = 6 J.

Video Thumbnail

03:23
Mechanical Energy - Intro

In physics, mechanical energy is the sum of the kinetic and potential energies of a system.
Join Course
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