if (Input.GetMouseButtonDown(0)) {
   mouseGlob = Camera.main.ScreenToWorldPoint (Input.mousePosition);

   
   var dir = mouseGlob - new Vector2 (transform.position.x, transform.position.y);
   var angle = Mathf.Atan2 (dir.y, dir.x) * Mathf.Rad2Deg;

   transform.rotation = Quaternion.AngleAxis (angle,Vector3.forward);
    
   rigidbody2D.AddForceAtPosition (transform.right  * 200, mouseGlob);
}