what do you understand by the term acceleration what is meant by its being positive or negative explain with example write its SI unit
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Answer:rate of change of velocity is acceleration...when a body is thrown vertically upwards then it is negative due to being against gravity...thats it
Its Si unit is m/s^2
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Acceleration is the rate of change velocity of an object with respect to time . positive acceleration is the change in velocity of an object in the positive direction.Negative acceleration is just acceleration directed towards the direction that we defined as the 'negative 'direction.
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