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(i) A person sits near the edge of a cir...

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

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As we know `L=Iomega`
K.E. `=1//2L^(2)//I`
For same L, we can say K.E. `prop` 1/I
As moment of inertia of X is greater than that of Y. Therefore, rotational Kinetic energy of Y will be greater than that of X.
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MODERN PUBLICATION-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-Chapter Practice Test (for Board Examination)
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