Question

The odometer of a car reads 2000 km at the ztart of a trip and 2400 km at the end of the trip. if the trip took 8 hour, calculate the average speed of the car in km/ h and m/s.

Answer 1

Total distance. = 2400-2000 =400km
Time = 8hrs
Speed = distance ÷ time
400÷8= 50.
That's 50km/hr

And to convert in metre per second :
50 km = 50000 metre
8 hr = 8*60*60 = 28800seconds

Speed = 50000÷28800 = 1.73m/sec

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