The total weight of a car with passengers is 25,000N.The area of contact of each of the four tyres with the ground is 0.025squire m . Determine the minimum car tyre pressure

To determine the minimum car tire pressure, we need to find the force per unit area exerted by each tire on the ground. We can use the equation:

Pressure = Force / Area

Given that the total weight of the car with passengers is 25,000 N and there are four tires, we can divide the total weight by the number of tires to find the force exerted by each tire:

Force per Tire = Total Weight / Number of Tires
= 25,000 N / 4
= 6,250 N

The area of contact of each tire with the ground is given as 0.025 square meters.

Now, we can substitute the values into the pressure equation:

Pressure = Force per Tire / Area
= 6,250 N / 0.025 m^2
= 250,000 N/m^2

Therefore, the minimum car tire pressure is 250,000 N/m^2 or 250 kPa (kiloPascals).