Answered: When you push against a wall with your…

Name: When you push against a wall with your fingers, they bend because they
Uploaded: 2024-03-20T06:56:46.000Z
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Description: When you push against a wall with your fingers, they bend because they experience a force. Identify this force?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 4P: One or more external forces are exerted on each object enclosed in a dashed box shown in Figure 4.2....

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When you push against a wall with your fingers, they bend because they experience a force. Identify this force?

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Step 1

Concept:

The above can be resolved using the concepts of Newton's third law of motion. Newton's third law states that, "to every action, there is equal and opposite reaction". Which means that, if some magnitude of force is being applied by any object (say object 1) on other object (say object 2), then other object will apply same magnitude of force, but in opposite direction. Then,

$F_{12} = - F_{21}$

Here,

$F_{12}$ denotes the force applied by object 1 on object 2. This force is called action force.

$F_{21}$ denotes the force applied by object 2 on object 1 (Negative sign shows that this force is opposite in direction). This force is called reaction force.

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