how i know my object speed ?

     var ball= Instantiate(Ball, transform.Find("me").transform.position, Quaternion.identity);
     ball.rigidbody.AddRelativeForce(transform.forward * Force );
      print(rigidbody.velocity.magnitude+"unit/s");
     
     ball-=1;
     }
 

it gets me 0 unit / s !! please tell me how i write the code exactly . thanks

You need to have the print in the Update or any kind of repeating method. I would guess this bit of code is only code once so at this time the velocity is zero but next frame it will be positive.

You'll need to use ball.rigidbody.velocity.magnitude, not rigidbody.velocity.magnitude. The latter refers to the rigidbody of THIS gameObject, which might not even exist. Also, when putting this in Update, your variable "ball" must be globally visible, ins$$anonymous$$d of being declared within Shoot().

Thanks a lot dear, i.ll try

I make like this but no responding :( what,s the wrong please ?

 var darba= Instantiate(Ball, transform.Find("myhand").transform.position, Quaternion.identity);
 darba.rigidbody.AddRelativeForce(transform.forward * qowwatDaf3 );
 print(darba.rigidbody.velocity.magnitude+"unit/s");
 BallNum-=1;
 }