# Kinetic energy and conservation of energy go together?

1. Feb 10, 2006

### Mt. Nixion

How do Newton's third law, mass, acceleration, impulse, inelastic and elastic collisions, momentum, conservation of momentum, kinetic energy and conservation of energy go together?

Last edited: Feb 10, 2006
2. Feb 11, 2006

### Mattara

can you specify a bit? Becuase else i can write it all down for you but that would take quite a few hours.

3. Feb 11, 2006

### Mt. Nixion

What do you mean by specify?

4. Feb 11, 2006

### Mattara

$$F = ma$$
or
$$p = mv$$
or
$$m_1v_1=m_2v_2$$
or
$$(mv^2)/2$$

or any other forumla or relationship. If i were to go over everything (as the thing you asked for covers alot) it wouls take a huge amount of time. Can you make your question a bit...smaller so that it does cover so much?

Last edited: Feb 11, 2006
5. Feb 11, 2006

### Mt. Nixion

I'll try...

What I am looking for, is how these things are used in physical interactions.

6. Feb 11, 2006

### Mattara

Ok i see. So you are basically looking for definition of those?

7. Feb 11, 2006

### Mt. Nixion

I think the definitions would be good.

8. Feb 11, 2006

### Mattara

ok, i'll give it a shoot

(posting this reply to keep people from replying b4 i'm done since it is alot to write)

9. Feb 11, 2006

### Mattara

Newton's third law of motion:

As the name sounds it is the third law of motion made up by Issac Newton. Its definition is:

"Every action has an equal and opposite re-action"

So if you shot with a pistol, the gun will apply a force on the bullet making it fly away. You will feel a recoil from the weapon. If you try to pull a spring the spring will try to pull back. If you hit a ball, the ball also affects your hand with the same force but in exactly the opposite direction. This also aplies for impulse which i'll come to later.

Mass:

Mass is a measurement that tells you how much force you feel from a body divided by acceleration of gravity.

Now i'm to tired to define the rest in this post. Will try more tomorrow.