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The odometer of a car reads 2000 km at t...

The odometer of a car reads 2000 km at the start of a trip and 2400 km at the end of the trip. If the trip took 8h, calculate the average speed of the car in `kmh^(-1) and ms^(-1).`

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Total distance travelled
= (Final observation) -(Initial observation)
`= 2400 - 2000`
`= 400 km`
Average speed `= ("Total distance travelled")/("Total time taken") = (400 km)(8h) =50 km h ^(-1)`
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