Question

I went to a shop with a constant speed of 30 m/s and came back with 20 m/s. What is my
average speed of travel?
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Answer 1

Answer:

5m/s

Explanation:

speed of going

=30

speed of coming

=20

average speed

=(30-20)/2

=5m/s

Answer 2

Answer:

5m/s

Explanation:

went shop with speed =30m/s

came back with speed =-20m/s (according to the direction)

average speed = (30 + (-20) )/2

= 10/2 = 5 m/s