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Q.

A ring rolls without slipping on a horizontal surface. At any instant, its position is as shown in the figure

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a

Section BC has the same kinetic energy as section DA.

b

Section BC has greater kinetic energy than section CD.

c

The section AB, BC, CD, and DA have the same kinetic energy.

d

Section ABC has greater kinetic energy than section ADC

answer is A, B.

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Detailed Solution

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Section ABC has greater kinetic energy than section ADC, since the upper half the velocity due to rotation and translation will add up.

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