Formula of Inertia: Learn What It Is and How to Use It

  • Context: High School 
  • Thread starter Thread starter kckevo16
  • Start date Start date
  • Tags Tags
    Formula Inertia
Click For Summary

Discussion Overview

The discussion centers around the concept of inertia, specifically seeking to clarify its definition and whether it can be expressed through a formula. Participants explore the relationship between mass and inertia, referencing Newton's laws of motion.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant inquires about the formula for inertia, indicating a project focus.
  • Another participant suggests that inertia may not have a specific formula, proposing that it is simply mass and relates to resistance to changes in velocity.
  • A different participant asserts that inertia is quantifiable, stating that a particle's inertia is its mass and that the inertia of an extended body can be expressed as an inertia matrix.
  • There is confusion regarding the distinction between Newton's first and second laws, with references made to the formula F = Ma.

Areas of Agreement / Disagreement

Participants express differing views on whether inertia can be quantified, with some asserting it is merely a property of mass while others argue it can be expressed mathematically. The discussion remains unresolved regarding the existence of a specific formula for inertia.

Contextual Notes

There are unresolved assumptions regarding the definitions of inertia and mass, as well as the applicability of Newton's laws in this context.

kckevo16
Messages
2
Reaction score
0
Hey everyone! I love this site!

Im doing a project on Inertia and I need to know the Formula. Does anyone know what it is?
 
Physics news on Phys.org
You'll have to be a bit more specific than that!
 
The index of your textbook ... "Newton's first law"
 
F = Ma?
 
Is there really a formula for intertia? Isn't it just mass? The tendency for a mass to remain at constant velocity/rest. Mass and/or inertia is like a measure of resistance in a change of velocity. So the higher the mass the more force you need to accelerate it at a certain rate.
 
Yes.. Inertia is just the property which defines the resistance the moving or a stable object offers towards the external applied force. as the mass of the object increases its inertia increase.. its not quantifiable...
 
sekar507 said:
its not quantifiable
I have to disagree there; the inertia for a specific body is definitely quantifiable. A particle's inertia is simply it's mass, whereas one can express the inertia of an extended body as an inertia matrix. Either way, one can definitely quantify the inertia of a specified mass distribution.
 
Last edited:

Similar threads

  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 4 ·
Replies
4
Views
1K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 49 ·
2
Replies
49
Views
6K
  • · Replies 46 ·
2
Replies
46
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 3 ·
Replies
3
Views
22K