A man walks 7 km in 2 hours and 2 km in 1 hour in the same direction.
1. what is the men's average speed for the whole journey ?
2. what is the man's average velocity for the whole journey ?
please show the whole process step by step .
plz help its urgent.
Answers
Answered by
2
Answer:
1) average speed = total distance /time taken
average speed = 9km/3hr
average speed =3km/hr
Answered by
4
Explanation:
Given that,
A man walks 7 km in 2 hrs and 2 km in 1 hr in the same direction.
Total distance covered = 7 + 2 = 9 km
Total time taken = 2 + 1 = 3 hrs.
Since the man walks in same direction,
Therefore, the distance will be equal to displacement.
Therefore, we will get,
Total displacement = 9 km
1. Now, we know that,
Avg. Speed = Distance/Time
=> Avg. Speed = 9/3
=> Avg. Speed = 3 km/hr
2. Also, we know that,
Avg. Velocity = Displacement/Time
And therefore, we have,
=> Avg. velocity = 9/3
=> Avg. velocity = 3 km/hr
Similar questions