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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

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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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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