Question

the odometer of a car reads 2000km at the start of a trip and 2400km at the end of the trip. If the trip took 8hr, calculate the average speed of the car in km/hr and m/s.

Answer 1

distance=2400-2000=400
time=8hrs
avg speed=total distance/total time
avg speed in km/h=400/8=50km/h
avg speed in m/s=50*(5/18)=125/9m/s
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Answer 2

distance= 2400-2000=400km
time=8hr
speed=d/t
=400/8
=50km/hr
=50x1000/60x60 m/s
=50000/3600m/s