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 8h, calculate the average speed of car in km h^-1 and m s^-7.


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Answer 1

Explanation:

Displacement (s)= 2400 – 2000 = 400 km

Time (t) = 8 hrs

Speed (v) = ?

$v \: = \frac{s}{t}$

$v \: = \frac{400}{8}$

$v \: = 50 \: km \: {h}^{ - 1}$

$v \: = 13.88 \: m {s}^{ - 1}$