Object after instantiate doesn't apply AddForce

Questions & Answers
1

Hello, I was instantiating a prefab by UnityOfficial tutorial for Instantiate. All work except “AddForce” command. I wrote script as in the tutorial, but variable ballPrefab I made as GameObject type instead of Rigidbody. If it is Rigidbody, I can not add prefab in the inspector into it… Here is the code:

public Transform spawner;
public GameObject ballPrefab;

void Update () {
        
        if (Input.GetButtonDown("Fire1")) {

           Rigidbody ballInstance;
           ballInstance = Instantiate(ballPrefab, spawner.transform.position, spawner.rotation) as Rigidbody;

           ballInstance.AddForce(spawner.forward * 3000);
        }
}
2

Try it this way:

public Transform spawner;
public GameObject ballPrefab;
 
void Update () {
 
        if (Input.GetButtonDown("Fire1")) {
 
           GameObject ballInstance;
           ballInstance = Instantiate(ballPrefab, spawner.transform.position, spawner.rotation) as GameObject;
 
           ballInstance.rigidbody.AddForce(spawner.forward * 3000);
        }
}