Getting access to instantiated rigidbody c#

Hello,

I need to get access to an instantiated prefab that contains a rigidbody to add some force to it in c#.

Code (CSharp):

1.  
2. // Script 1 Instantiates it ...
3. void Start()
4. {
5.       GameObject fireBall = Instantiate( "FireBall", newVector3( 0, 0, 0), Quaternion.identity, 0 );
6. }
7.  
8.  
9.  
10. // Script 2 needs to access it ...
11. Rigidbody fireBallRigidBody = (Rigidbody)GetComponent<Rigidbody>();
12.  
13. if(fireBallRigidBody == null)
14. {
15.     Debug.Log ("fireBallRigidBody is null ");
16. }

Pretty simply I use to think but the rigidbody continues to be null and I'm apparently rusty ...

I've done this before but drawing a blank and can't seem to find a good example.

Hint?

Thanks

 

And of course as soon as I post to ask I figure it out.

Code (CSharp):

1.  
2. fireBallRigidBody = fireBall.GetComponent<Rigidbody>();
3.