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The ratio of rotational and translatory ...

The ratio of rotational and translatory kinetic energies of a solid sphere is

A

`2//9`

B

`2//7`

C

`2//5`

D

`7//2`

Text Solution

Verified by Experts

The correct Answer is:
C
`(K_(R))/(K_(T))=((1)/(2)Iomega^(2))/((1)/(2)mv^(2))=((1)/(2).(2)/(5)mR^(2)omega^(2))/((1)/(2)mR^(2)omega^(2))=(2)/(5)`
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