Answer:
14.3065 rad
-36.777 J
-28.29 W
Step-by-step explanation:
= Final angular momentum = 0.6 kgm²/s
= Initial angular momentum = 3 kgm²/s
I = Moment of inertia = 0.2 kgm²
Torque is given by


Initial angular speed is given by

Angular acceleration is given by


The angle is 14.3065 rad
Work done is given by

The work done on the wheel is -36.777 J
Power is given by

The power is -28.29 W