var shootForce:int = 1000;
var prefabBall:Transform;

function Update () {

pivotPoint = gameObject.transform.position;
pivotPoint = rotateArrow.pivotPoint;
spawnPoint = pivotPoint + (transform.up * 5);

	if(Input.GetMouseButtonDown(0)) {
	var instantiatedBall = Instantiate(prefabBall, spawnPoint , Quaternion.identity);
	instantiatedBall.rigidbody.AddForce(transform.forward * shootForce);
	}

}