Two small balls A and B each of mass m, are attached tightly to the ends of a light rod of length d. The structure rotates about the perpendicular bisector of the rod at an angular speed `omega`. Calculate the angular momentum of the individual balls and of the system about the axis of rotation.

Explanation

To solve the problem, we need to calculate the angular momentum of the individual balls A and B, as well as the total angular momentum of the system consisting of both balls and the rod.

### Step-by-Step Solution:

1. **Identify the System**:
- We have two small balls A and B, each of mass \( m \), attached to the ends of a light rod of length \( d \).
- The system rotates about the perpendicular bisector of the rod at an angular speed \( \omega \).

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