The formula to calculation the linear speed  expressed in meters per 2nd <> from the angular velocity  to express in radians per second <> is:



where:



 is the straight velocity to express in meters per 2nd () is the angular velocity to express in radians per 2nd () is the radius express in meter ()

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For example, let"s consider a car with wheels having a radius of 10 centimetres. If the rotational velocity that the wheels is 20 rad/s, the linear speed of the auto is given by: