Question

what is the average speed of the object from point a to point e?

Explanation:

Step1: Determine total distance

From the graph, at point A distance is 0 km and at point E distance is 12 km. So total distance $d = 12 - 0=12$ km.

Step2: Determine total time

At point A time is 0 hours and at point E time is 14 hours. So total time $t = 14 - 0 = 14$ hours.

Step3: Calculate average - speed

The formula for average speed $v=\frac{d}{t}$. Substituting $d = 12$ km and $t = 14$ hours, we get $v=\frac{12}{14}=\frac{6}{7}\approx0.86$ km/h.

Answer:

$\frac{6}{7}$ km/h