Answers for "How to get tangential velocity of revolving object?"
http://answers.unity.com/questions/1167692/how-to-get-tangential-velocity-of-revolving-object.html
The latest answers for the question "How to get tangential velocity of revolving object?"Answer by QuintonH
http://answers.unity.com/answers/1167714/view.html
Easiest way to go about it would be to find the rotation speed in radians of the parent object and multiply it by the distance between the parent object and the child sphere.
The distance of the child sphere object should be the magnitude of the child object's relative transform position; however, calculating the magnitude of the object uses the costly square root formula. Assuming the distance from the parent and child never changes in this scenario, just set the object at the prefered distance on a single axis and get the value of the non-zero x, y, or z axis and that will be your distance.Fri, 08 Apr 2016 17:40:57 GMTQuintonHAnswer by b1gry4n
http://answers.unity.com/answers/1167708/view.html
If youre rotating the object by manipulating its transform, the rigidbody isnt doing any work. Try rotating it using the rigidbody and you should see some velocity/angular velocity values.Fri, 08 Apr 2016 17:23:11 GMTb1gry4n