What is the weight of the tractor if the bearing area of its tracks is 1.3 and 3, and the pressure on the soil is 40 kPa?

Initial data: S (value of the support area of the tractor tracks) = 1.3 m2; P (pressure exerted by the mass of the tractor on the soil) = 40 kPa = 40 * 10 ^ 3 Pa.

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

The desired mass of the tractor can be determined from the formula: P = F / S = m * g / S and m = P * S / g.

Let’s calculate the mass of the tractor: m = 40 * 10 ^ 3 * 1.3 / 10 = 5.2 * 10 ^ 3 kg or 5.2 tons.

Answer: The required mass of the tractor is 5.2 tons.