36but what about particles in a rigid body?
1) NCERT says in some cases the angular momentum of a particle may not be parallel to the fixed axis. Can you give an example?
In case of rotation about fixed axis, the component of angular momentum perpendicular to the fixed axis is constant. why?
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3 Answers
211)Consider movement of earth about sun(consider it is in a circle).
Now axis of revolution passes through sun, and angular momentum due to revolution is parallel to axis,
but the earth is also revolving about its own axis that is not parallel to the axis passing through the sun.
Hence total angler momentum=sum of both components and the net is not parallel to fixed axis.
Thinking about 2nd part..
