- A ball rolls at a constant speed of 4meters/minute.

What is the distance that the ball will pass during the fourth minute?

Answer=4meters

- A person runs in a circular track for 10 minutes.

The runners constant speed is 2 meters/ second , and hge runs exactly 1 round

What is his displacement ?

Answer =0 meters

- What is the average velocity of a person walking in a straight line for 1m for 10sec, and then another 2m for 5 sec

Answer=12meters/minute