The direction of the change of angular momentum in gyroscopi

The direction of the change of angular momentum in gyroscopic motion is only related to the applied couple and not to the reaction couple. Transient characteristics of a system die out in the steady-state. The output response from a stable system diverges with time. Select from the expressions below the one that best Expression (B) only is correct. Expressions (B) and (C) only are correct. Expression (C) only is correct. Expression (A) only is correct. Expressions (A) and (C) only are correct.

Solution

4. a (expression B is correct)