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?
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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.
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