Friction braking is the oldest motor stopping method and it is similar to automobile braking.
Refer Figure 17-1 in the textbook for friction brake, which contains two friction surfaces. These surfaces are in contact with motor shaft.
This friction brake is controlled by the solenoid. Solenoid gets energized when the motor is running.
If the circuit has no power, solenoid de-energizes and the brake force is applied through the spring tension.
Therefore, yes, the brake force is still given to shaft of the motor when no power is in the circuit.