Inertia in motion - why is momentum called this

[Kaxa2000]

Inertia in motion - why is momentum referred to as this?

Also, what forces in nature are conservative does anyone know any examples?

[bp_psy]

Inertia in motion - why is momentum referred to as this?
Referred as what?

Also, what forces in nature are conservative does anyone know any examples?
All of them.

[Kaxa2000]

Why's it referred to as "inertia in motion"

[bp_psy]

Why's it referred to as "inertia in motion"

Where did you read that?
The Linear momentum of a particle is defined as p=mv. It is a quantity that remains constant with respect to an inertial reference frame, if no forces act on the particle.

[Kaxa2000]

It's also called inertia in motion

[bp_psy]

It's also called inertia in motion

I have never read or heard this anywhere. The only reason I see for somebody using this, is because mass is sometimes called a measure of inertia.If a mass is in motion it has momentum. I think it is an ambiguous and useless way to describe momentum. You should try to understand the usual definition.

[ideasrule]

I've heard of momentum being referred to, metaphorically, as "inertia in motion". I don't think it's accurate, even as a lie-to-children, because it doesn't represent how hard it is to move the object.

[Phrak]

I've heard of momentum being referred to, metaphorically, as "inertia in motion". I don't think it's accurate, even as a lie-to-children, because it doesn't represent how hard it is to move the object.

This sounds like an old usage. Where did you read it?

[sganesh88]

Inertia in motion alright. Inertia in what else? I have once read that "inertia" literally means laziness. Maybe this has got something to do with it.
Inertia would also be a fantastic name for a female. Wonder why no one has chosen it yet. :D

[Naty1]

Inertia in motion - why is momentum referred to as this?

(a) somebody decided to call it that,
(b) somebody did not like momentum,
(c) somebody is pulling your leg. (fooling you)

Let's call it "floogum" from now on...

[gutti]

if you look at angular momentum

angular momentum = moment of inertia x angular velocity

where moment of inertia is the distribution of mass

[tiny-tim]

Inertia in motion - why is momentum referred to as this?

It isn't!! :smile:

(Unless you can produce a quote …)