- #1

- 890

- 39

## Homework Statement

## Homework Equations

## The Attempt at a Solution

The angular momentum of the upper particle is given as

## \vec L_u = m \vec r \times ( \vec \omega \times \vec r )= m[ \vec \omega r^2 - \vec r ( \vec r . \vec \omega )] = m[ r^2 \vec \omega - \omega r \cos \alpha \vec r ]##

The angular momentum of the lower particle is same to that of the upper particle.

Hence, ##\vec L = 2 \vec L_u ##

Is this correct so far?