Freeze a Rigidbody2D's constraints and move the object manually with translate/Movetowards

Hi, I haven't used Unity in over 2 years so I'm going through the basics again really, I'm trying to freeze a rigidbody's constraints using

 this.GetComponent<Rigidbody2D>().constraints = RigidbodyConstraints2D.FreezeAll;

Then after freezing the Rigidbody, in another script I'm trying to move the object manually using translate to a target, but it just pops into place rather than slowly moves to the object like I intend to do.

I'm trying to move the object using

 other.transform.position = Vector2.MoveTowards (ball.transform.position, target1.position, move);

But this just pops the object to the target position without actually moving the object towards the target. I tried other ways to make the object Rigidbody2d to sleep, but this just continues to move the object's velocity right after it stops. Any methods I could use instead of this?