A body is said to be retarded if its velocity is decreasing. Eg: a train is said to be retarded when it slows down on reaching a station,i.e. the velocity decreases.Retardation is acceleration with negative sign. Or negative value of acceleration shows that the velocity of a body is decreasing.
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Answer:
A body is said to be retarded if its velocity is decreasing. Eg: a train is said to be retarded when it slows down on reaching a station,i.e. the velocity decreases.Retardation is acceleration with negative sign. Or negative value of acceleration shows that the velocity of a body is decreasing.