object speed

Unity Engine
1

I have a cube which I rotate on a central axis through space using dragobject and physics.

How do I determine how fast the object is rotating?

The idea is that I will determine the rotation speed and play an audio clip which corresponds to this speed.When it is stationary the sound should not play.

2

Take a look at rigidbody.angularVelocity, which is a vector whose direction is the axis of rotation and whose magnitude is the speed at which it rotates. If I recall correctly, the rotation speed is in radians per second.