Chapter SH, Problem 2.8APP

To determine

To Calculate: The total duration of the trip.

Answer to Problem 2.8APP

The total duration of the trip is $\text{4 h}$ .

Explanation of Solution

Given data:

Average speed $=60\text{ km/h}$

Total distance $=240\text{ km}$

Formula used:

  $\text{average speed}=\frac{\text{total distance}}{\text{total time}}$

Calculation:

As per the problem,

Average speed $=60\text{ km/h}$

Total distance $=240\text{ km}$

To find the total time, substitute the values of total distance and average speed in the rearrangedaverage speed formula.

  $\begin{array}{l}\text{total time}=\frac{\text{total distance}}{\text{average speed}}\\ \text{total time}=\frac{240\text{ km}}{\text{60 km/h}}=4\text{ h}\end{array}$

Conclusion:

The total duration of the trip is $\text{4 h}$ .