The problem asks to calculate the pressure exerted by a car on the road, given the total force exerted by the car and the contact area of each of its four tires. The formula for pressure is given as $pressure = \frac{force}{area}$.

1. Problem Description

The problem asks to calculate the pressure exerted by a car on the road, given the total force exerted by the car and the contact area of each of its four tires. The formula for pressure is given as $pressure = \frac{force}{area}$.

2. Solution Steps

First, we need to calculate the total contact area of the four tires.

Each tire has an area of $0.03 m^2$, and there are 4 tires. So the total area is:

$total\_area = 4 \times 0.03 m^2$

$total\_area = 0.12 m^2$

Next, we calculate the pressure using the formula $pressure = \frac{force}{area}$.

The total force exerted by the car is $15,600 N$.

So,

$pressure = \frac{15600 N}{0.12 m^2}$

$pressure = 130000 N/m^2$

3. Final Answer

The pressure that the car exerts on the road is $130000 N/m^2$.