A person standing at the origin quickly walks 20 m to the right in 30 s. They then slowly walk back to the left 10 m in 10 s. The person's average velocity for this entire trip is:

Answer 1

Average Velocity = Total displacement / total time = ( 20-10)/(30+10)= 10/40 = 0.25 m/s

Where as Average Speed = Total distance / time = (20+10)/(30+10) = 30/40 = 0.75 m/s