Answer:
The angular momentum of the wheel is
.
Explanation:
It is given that,
Mass of the wheel, m = 2.73 kg
Radius of the wheel, r = 31 cm = 0.31 m
Angular speed of the wheel, 
We need to find its angular momentum. It is given by :

I is the moment of inertia of the wheel, 



So, the angular momentum of the wheel is
. Hence, this is the required solution.