how to add reference to rigidbody 2d

                
                        public Rigidbody2D rb;
                    
                

unity rigid body variable

                        
                                public Rigidbody rigidbody;
                            
                        

c sharp how to assign a rigidbody

                        
                                GameObject myGameObject = new GameObject("Test Object"); // Make a new GO.
Rigidbody gameObjectsRigidBody = myGameObject.AddComponent<Rigidbody>(); // Add the rigidbody.
gameObjectsRigidBody.mass = 5; // Set the GO's mass to 5 via the Rigidbody.
                            
                        

rigidbody2d unity

                        
                                Rigidbody2D rb; 

// Can use Awake
void Start()
{
	// Ataches the rigedbody that is on the gameObject to rb
	rb = GetComponent<Rigidbody2D>();
}
                            
                        

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