Does Kinetic Energy Apply to Bullets in Ballistics?

[Guapa]

Homework Statement

Just a simple question, does Kinnetic energy applies to a bullet that has being shot?

Homework Equations

K=1/2 * m * v^2

The Attempt at a Solution

N/A

 

[gneill]

What are your thoughts on the matter? Does the bullet have mass? Does it have velocity?

 

[Guapa]

Yes it has mass, and it has velocity.
I was reading about Kinetic energy not applies to rotating objects so then I thought it does not apply to flying rotating objects, therefore it does not apply to bullets traveling on our space.

 

[gneill]

Yes it has mass, and it has velocity.
I was reading about Kinetic energy not applies to rotating objects so then I thought it does not apply to flying rotating objects, therefore it does not apply to bullets traveling on our space.

There is a distinction between translational kinetic energy and rotational kinetic energy. Perhaps that is what you read about? An object can have both if it is both translating (moving) and rotating.

 

[Guapa]

Now that enlighten me, I just scanned through the initial part of this article and did not went through all, I got a bit disturbed by the initial statement:
In classical mechanics, the kinetic energy of a non-rotating object of massm traveling at a speedv is $$ \frac {1}{2} \cdot m \cdot v^2 $$ . From wikipedia.
This is what little knowledge does to me , complete embarrassment.
Thank you Sir.