On a playground merry-go-round

PHYSICS · Multi-part · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

On a playground merry-go-round, a child sits at a distance of 5.0 m from the centre. The child experiences an inward acceleration equal to 0.50 g0.50\,g. (i) Find the linear speed of the child. (ii) Determine the time taken for one complete revolution of the merry-go-round. (iii) If the operator wishes to reduce the inward acceleration to 0.25 g0.25\,g without changing the radius, what should be the new time period of revolution?

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