question_answer

(i) A person sits near the edge of a circular platform revolving with a uniform angular speed. What will be the change in the motion of the platform? (ii) What if the person starts moving from the edge towards the centre of the platform?

Answer:

                (i) As \[L=I\omega \]= constant, and I increases, therefore, \[\omega \]will decrease. (ii) As the person starts moving form the edge towards the centre of platform, I goes on decreasing. Hence \[\omega \]goes on increasing.