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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) I omega^(2))/((1)/(2) mv^(2))= ((1)/(2). (2)/(5) m R^(2) omega^(2))/((1)/(2) mR^(2) omega^(2))= (2)/(5)`
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