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Question
What is meant by the term retardation ? Name its S.I. unit.
What is meant by the term retardation ? Name its S.I. unit.
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Solution
When the acceleration becomes negative, velocity of the body is decreasing.
This negative acceleration is only regarded as the retardation or deceleration.
The SI unit of the retardation is same as the acceleration that is 
The magnitude however is negative in case of retardation.
When the acceleration becomes negative, velocity of the body is decreasing.
This negative acceleration is only regarded as the retardation or deceleration.
The SI unit of the retardation is same as the acceleration that is
The magnitude however is negative in case of retardation.
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