If R is the radius of gyration of a body of mass M and radius r, then the ratio of its rotational to translational kinetic energy in the rolling condition is :
A
R2R2+r2
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B
R2r2
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C
r2R2
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D
1
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Solution
The correct option is CR2r2 KRKT=12Iω212mv2=Iω2mv2