A solid sphere of radius 2.45m is rotati...

A solid sphere of radius `2.45m` is rotating with an angular speed of `10 rad//s`. When this rotating sphere is placed on a rough horizontal surface then after sometime it starts pure rolling. Find the linear speed of the sphere after it starts pure rolling.

`5 sqrt3`

`2.5 sqrt3`

`(5)/(sqrt3)`

`(2.5)/(sqrt3)`

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