Answer:
The average speed is 0.46 m/m.
Step-by-step explanation:
Given that,
His total displacement from start to finish is 5.0 m east and 12 m north.
Time = 28 minute
We need to calculate the total distance
Using Pythagorean theorem

Average speed :
Average speed is equal to the total distance divided total time.
We need to calculate the average speed
Using formula of average speed

Put the value into the formula


Hence, The average speed is 0.46 m/m.