What is the mass of a person if he puts a pressure of 15 kPa on the floor, and the area of his shoes is 0.04 m2.

Initial data: P (the amount of pressure created by the mass of a person on the floor) = 15 kPa = 15 * 10 ^ 3 Pa; S (total surface area of a person’s shoes) = 0.04 m2.

Reference data: g (acceleration due to gravity) = 10 m / s2.

To find the mass of a person, we will use the formula to calculate the pressure: P = F / S = m * g / S and m = P * S / g.

Let’s calculate: m = 15 * 10 ^ 3 * 0.04 / 10 = 60 kg.

Answer: The mass of a person will be 60 kilograms.