Question

You walk 1.35 km from home to a restaurant in 22 min , stay there for 1.0 h , and then take another 22 min to walk back home. What is the average speed and the average velocity

Answer 1

speed = 0.644 m/s

velocity = 0

Step-by-step explanation:

1.35 km = 1350 m

22 min = 1320 sec

speed = distance / time

= 2700 [restaurant and back] / 2640

= 0.644 m/s

velocity = displacement / time

since you came back to you starting point, your displacement is zero (displacement is the distance from the starting position). therefore, velocity is also 0.