Question

A car takes 15 minutes to travel along a road that is 20 km long. What is the average speed of the car?

Answer 1

Speed= distance/time

given time=15minutes

convert minutes to seconds 15×60=900

distance=20/1000 = 0.02metres

speed = 0.02/900

= 2.22×10^-5

the average speed is 2.22×10^-5 m/s