A solid cylinder of mass 20 kg rotates a...

A solid cylinder of mass `20 kg` rotates about its axis with angular velocity of `100` radian `s^(-1)`. The radius of the cylinder is `0.25m`. The magnitude of the angular momentum of the cylinder about its axis of rotation is

`62.5 Js`

`625 Js`

`0.625s`

`6.25s`

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