Question

Supposed a car is travelling along a “school zone” road with a speed limit of 30 km/h. The road has a length of 1 kilometer. The car entered and exited the section of the road within 0.05 hr. Was the car over speeding? Explain your answer and attach your calculation following Formula-Given-Asked-Solution-Answer (FGASA) format. Discuss why is it important to follow road regulations.

Answer 1

Given:

A car is travelling along a “school zone” road with a speed limit of 30 km/h. The road has a length of 1 kilometer. The car entered and exited the section of the road within 0.05 hr.

To find:

• Whether the car was over speeding?

• Importance of following traffic rules !

Calculation:

In order to calculate the speed of the car, we can apply the following expression:

$\rm \: v = \dfrac{distance}{time}$

$\rm \implies \: v = \dfrac{1 \: km}{0.05 \: hr}$

$\rm \implies \: v = \dfrac{100 \: km}{5 \: hr}$

$\rm \implies \: v = 20 \: km/hr$

So, the car was within the speed limit (he didn't overspeed).

Importance of following traffic rules:

• It prevents any accident and damage to vehicle occupants or the pedestrians.

• It prevents any damage to property (like buildings, lamp post, etc.)