# Answer to Question #6590 in Mechanics | Relativity for Anonymous

Question #6590

If rotational speed of a disc remains constant, what happens to the speed of a point on the disc if its distance from the axis is doubled?

Expert's answer

As we know angular speed omega=V/r where V-tngential speed, r -radius of revolution

hence tangential speed V=omega*r

Now

it's clear that if we double r(omega is constant) tangential speed will also be doubled

hence tangential speed V=omega*r

Now

it's clear that if we double r(omega is constant) tangential speed will also be doubled

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