If a body is rolling on a surface withou...

If a body is rolling on a surface without slipping such that its kinetic energy of translation is equal to kinetic energy of rotation then it is a

A

disc

B

sphere

C

cylinder

D

ring

Verified by Experts

The correct Answer is:

D

`(1)/(2)mv^(2)=(1)/(2)Iomega^(2)=(1)/(2)I(v^(2))/(r^(2))`
`therefore I=mr^(2) therefore " It is a ring."`

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