A person puts pressure on the floor, equal to 15 kPa. The area of the soles of his boots is 0.04 m2. What is the mass of a person?

To find the value of the mass of the represented person, we use the formula: P = Pch / S = mh * g / S, from where we can express: mh = S * P / g.

Variables and constants: S – the total area of the boots (S = 0.04 m2); P – created pressure (P = 15 kPa = 15 * 10^3 Pa); g – acceleration due to gravity (g ≈ 10 m / s2).

Calculation: mh = S * P / g = 0.04 * 15 * 10^3/10 = 60 kg.

Answer: A person has a mass of 60 kg.