A `40 kg` flywheel in the form of a uniform circular disc of `1 m` radius is rotating at `120` rpm. Calculate the angular momentum.

Explanation

To calculate the angular momentum of the flywheel, we will follow these steps:

### Step 1: Identify the given values
- Mass of the flywheel (m) = 40 kg
- Radius of the flywheel (r) = 1 m
- Rotational speed (N) = 120 rpm

### Step 2: Calculate the moment of inertia (I) of the flywheel
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