Question

A person travels a distance of 72 km in 4 hrs.Calculate the average speed in m/s​

Answer 1

Answer:

5 m/s

Explanation:

72 km in 4 hrs

72/4 = 18 km/h

18/3.6 = 5 m/s

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Answer 2

Answer:

A person travels a distance of 72 km in 4 hrs. The average speed is 5 m/s​.

Explanation:

The distance travelled by an object in a given time interval is divided by the time interval's duration to get the object's average speed. As a result, the unit of distance is the metre or the kilometre, and the unit of time is the second or the hour.

Given, distance travelled = 72km =  72000 m

Time taken = 4hrs =  240min =  14400s

Since, Speed= distance travelled/time taken

=72000m/14400s

=5m/s