Question

Масса трактора 4,5 тонн, площадь гусениц 1,6 квадратных метров. Пройдёт ли трактор по льду, если лёд выдерживает 100 кПа?

Answer 1

P=F/S
p=4500*10/1,6=28125 (Па)
Проедет

Answer 2

Calculating Pressure Exerted by the Tractor on the Ice

To determine if the tractor can pass over the ice, we can calculate the pressure exerted by the tractor on the ice surface using the given information.

The pressure exerted by an object can be calculated using the formula: pressure (p) = force (F) / area (A).

Given: - Mass of the tractor (m) = 4.5 tons = 4500 kg - Area of the tracks (A) = 1.6 square meters - Acceleration due to gravity (g) = 9.8 m/s^2

Using the formula F = m * g to calculate the force exerted by the tractor: - F = 4500 kg * 9.8 m/s^2 - F = 44100 N

Now, we can calculate the pressure (p) exerted by the tractor on the ice: - p = F / A - p = 44100 N / 1.6 m^2 - p ≈ 27562.5 Pa

Conclusion

The pressure exerted by the tractor on the ice is approximately 27562.5 Pa, which is well below the given load-bearing capacity of the ice at 100 kPa. Therefore, based on this calculation, the tractor should be able to pass over the ice without exceeding its load-bearing capacity.