A person driving to a store travels 100 metres in 200 seconds. Then he went to another store driving another 200 metres in 400 seconds. What is his average speed (in m/s)?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 0.5.
Given that
A person travels a distance of 100 m and another distance of 200 m
Time taken to travel these distances in 200 and 400 sec
Formula used
The average speed = Total work/Total time
Calculation
The average speed = (100 + 200)/( 200 + 400) = 300/600 = 1/2 = 0.5 m/s