question_answer

  Express average velocity when the velocity of a body changes at a non-uniform rate and a uniform rate.

Answer:

                  When the velocity of a body changes at a non-uniform rate, its average velocity is found by dividing the net displacement covered by the total time taken. i.e.,   Average velocity In case the velocity of a body changes at a uniform rate, then the average velocity is given by the arithmetic mean of initial velocity and final velocity for a given period of time. i.e. Average velocity