Rigidbody Energy (bounce)

Hello, I have come to a strange or quite complex situation , and i would like to thank any idea in the solution of this matter:

Is there any way to know if the rigidbody is in movement or will be moving due to the result forces. How can i Know if a rigidbody is sleeping appart of (isSleeping) method that somehow its not working for me until i check kinematic :(.

All the solutions i've found are driven by " rigidbody.velocity.magnitude " so when the object collides with ground the energy will be 0 because its velocity its 0...... so to say the object still has energy to bounce.... but at this very moment the result is 0......