What pressure does the boy produce on the floor, whose weight is 48 kg, and the area of the soles of his shoes is 320 cm2.

As we reliably know, in order to calculate the value of pressure, it is possible to use the formula known from the school curriculum:

p = F: S.

Let us determine what value will equal the force with which this boy presses on the floor, if from the condition of our problem we know for sure that his mass is 48 kilograms:

F = 48 * 10 = 480.

Now we can calculate what the pressure that he exerts on the floor will equal:

320 cm2 is the same as 0.032 m2;

480: 0.032 = 15000.

Answer: 15000 Pa.