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Is average velocity equals to (initial +final velocity)/2

Asked Ishita

Answer:

Not always. The average velocity =(initial velocity +final velocity)/2; only if the body is undergoing uniform acceleration or retardation.

If a body is accelerated for some time and then decelerates then the above formula will not give a correct answer.

So, in general, the above formula cannot be used if the body possesses a variable acceleration.