Question

A man walks 7 km in 4 hours,3.5 km in 1 hour and 5 km in 2 hours in the same direction.
What is the man's average speed for the whole journey?
What is the man's average velocity for the whole journey?

Answer 1

Given: A man walks 7 km in 2 hrs

Later he walks 2 km in 1 hour

We need to find the average speed and average velocity

Solution:

We know that

Speed = Total distance / Total time

Average speed = 9/3 = 3 km/hour. Average velocity will be the same as average speed in this case since there is no direction change mentioned. average velocity = average speed = 3 km/hour.