qqp question1: If a body goes from A to B with a velocity of 20 m/s and comes back from B to A with a velocity of 30 m/s, what is the average velocity of the body during the whole journey? question2: If a body goes from A to B with a velocity of 20 m/s and comes back from B to A with a velocity of 30 m/s what is the average velocity of the body during the whole journey?