unity. How to find out the speed while an object is moving?

Question

Unity

In general, there is an object, and on it is a RigidBody, and so, I need to get the velocity vector of this object at the right time. How to do it?

Answer 1

An object:

Rigidbody rb = GetComponent<Rigidbody>();
 Vector3 v3Velocity = rb.velocity;

Numerical value:
var speed = rigidbody.velocity.magnitude;