Help me To Know what Physics Pang Game use in Ball Bounce

Hello, i am trying to copy ball control like pang game have but cant success I write this code but sill missing something or i am doing something wrong

  private void OnTriggerEnter(Collider other)
     {
         Debug.Log("Collied");
         
         if(other.tag == "rightWall")
         {
             direction = false;
         } else if(other.tag == "leftWall")
         {
             direction = true;
         }
        
         if(other.tag == "groundWall") rigid.velocity = Vector3.up * 10;
          if(other.tag != "topWall")  BallMove(); 
     }
 
     void BallMove()
         {
             if (direction == false)
             {
                 rigid.AddForce(Vector3.Lerp(transform.position, new Vector3(-300f, 0, 0), Time.deltaTime * ballForce));
             }
             else
             {
             rigid.AddForce(Vector3.Lerp(transform.position, new Vector3(300f, 0,0), Time.deltaTime * ballForce));
         }
         }