A turntable of radius R1 is turned by a circular rubberroller of radius R2 in contact with it at their outeredges. What is the ratio of their angular velocities,ω1 / ω2 ?

The  ratio is  

Explanation:

From the question we are told that

   The first radius is

    The  second radius is  

Generally the angular speed of the turntable is mathematically represented as

Generally the angular speed of the rubber roller is mathematically represented as

Where is the velocity of both turntable and  rubber roller

So

this is poiselle's equation from fluid mechanic in physics. mech eng

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