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A boy sits on a merry-go-round at the position marked by the red circle. A girl gives the merry-go-round a constant tangential push for 0.2 seconds as shown in the animation (position is given in meters and time is given in seconds). What is the magnitude of the tangential acceleration of the boy while the girl is pushing the merry-go-round? Restart.
Problem authored by Mario Belloni and Wolfgang Christian.