Question

While traveling on vacation, you measure the times and distances traveled. You travel 25 kilometers in 5 hours,followed by 25 kilometers in 5 hours. What is the average speed?

Answer 1

For this problem we have two trajectories given the first one with 25 km and 5 hours and a second one exactly the same.

From the definition of average speed we have the following formula:

`V_{\text{avg}}=(dis\tan ce)/(time)`

Where distance represent the total distance travelled and time the total time ellapsed. From the problem we know that: distance = 25+25 km= 50 km and time= 5+5 hr = 10 hr. so then replacing into the formula given we got:

So then we can conclude that the average speed is 5 Km/hr