The mass of the car is 1.5 tons. How much pressure does the car put on the road if the bearing area of each wheel is 125 cm2?

The pressure exerted by the mass of the vehicle on the road:

P = F / S, where F is the force of pressure of the mass of the car on the road (F = Ft = m * g, where m is the mass of the car (by the condition m = 1.5 t = 1500 kg), g is the acceleration of gravity (const , g = 10 m / s2)), S is the total support area (for four wheels S = 4S1; S1 = 125 cm2 = 0.0125 m2).

P = F / S = m * g / 4S1.

Let’s perform the calculation:

P = 1500 * 10 / (4 * 0.0125) = 300000 Pa = 300 kPa.

Answer: The car puts pressure on the road at 300 kPa.