A car weighing 4000 kg has a wheel bearing area of 800 cm ^ 3. What is the pressure of the car on the road?

The value of vehicle pressure on the road can be calculated as the ratio of the effective gravity to the unit of the wheel support area:

P = F / S, where F = Ft is the force of gravity that acts on the car (Ft = m * g, where m is the mass of the car (m = 4000 kg), g is the acceleration of gravity (let us assume g = 10 m / s2 ), S is the support area of the car wheels (S = 800 cm2 = 800 * 10-4 m2).

P = m * g / S = 4000 * 10 / (800 * 10-4) = 500000 Pa = 500 kPa.

Answer: The pressure of the car on the road is 500 kPa.