Question

when is average velocity of a body equal to its instantaneous velocity?

Answer 1

in a uniform motion at an instant these two quantity will equal

Answer 2

in uniform motion....the rate of change of velocity is zero i.e. the body remains in a constant motion so the average velocity is the velocity with which it is moving constantly.....if u see the body at any instant i.e. particular time u find that the body has same velocity always....so the average velocity and instantaneous velocity are constant i.e. equal