A body is moving with the velocity of 90km/hr is brought to a stop in 5 s. Calculate its retardation.
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It is given that the train is initially moving with a velocity of 90km/h. Then the brakes are applied due to which the train undergoes retardation. When a body is undergoing retardation, its velocity decreases with time. In other words, the body is moving with a negative acceleration.
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