Question

the odometer of a car reads 2000km at he 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 km h-1 and m s-1

Answer 1

Answer:

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Answer 2

Answer:-

Given:-

• Distance traveled (s) = (2400 - 2000) km = 400 km.
• Time taken (t) = 8h

To Find:-

• Avg. speed in (km h^-1) and (m s^-1).

_____________...

We know that:

v = s/t

In km/h:-

∴v = 400 km / 8h (Common = 8)

→ v = 50 km h^-1 ...(Ans¹)

In m/s:-

(Multiplication of the speed given in km/h by 5/18)

v = 50 km/h • 5/18

→ v ≈ 14 m s^-1 ...(Ans.²)