Question
Define average velocity when the velocity of a body changes at a nonuniform rate and a uniform rate.
Solution
Average velocity:
When the velocity of a body changes at a non-uniform rate, its average velocity is defined as the net displacement covered divided by the total time taken.
When 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.
If u is the initial velocity and v is the final velocity, then the average velocity vav is given by,
