Question

The odometer of car rate one hundred kilometre and the start of a trip and 2,000 kilometre at the end of the trip if the trip took 8 hour calculate the average speed of the car in kilometre per hour and metre per second

Answer 1

Given :

Initial odometer reading=2000km
Final odometer reading=2400km
Total distance= Final distance- Initial distance
=2400-200=400km
Total time=8h
Average speed =?

Formula to be used :
Average speed= Total Distance/Total time

Average speed in Km/hr:
Average speed=400/8
=50 km/hr

Average Speed in m/s:
1km/hr=5/18 m/s
∴50km/hr=50x5/18=250/18=13.88m/s