Question: A small block on a frictionless, horizontal surface has a mass of 1 kg . It is attached to a massless cord passing through a

A small block on a frictionless, horizontal surface has a mass of 1 kg. It is attached to a massless cord passing through a hole in the surface The block is originally revolving at a distance of 0.2 m from the hole with an angular speed of 50 RPM (Revolutions Per Minute). The cord is then pulled from below, shortening the radius of the circle in which the block revolves to the half of the original distance

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