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A ring of mass m and radius r rotates ab...

A ring of mass `m` and radius `r` rotates about an axis passing through its centre and perpendicular to its plane with angular velocity `omega`. Its kinetic energy is

A

`1/2 mr^(2) omega^(2)`

B

`mromega^(2)`

C

`mr^(2)omega^(2)`

D

`1/3 mr^(2) omega^(2)`

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