Question

Трактор массой 4000 кг передвигается по льду, лед на реке выдерживает давление не более 0,7*10(в 5 степени) Па. Определите площадь соприкосновения гусениц трактора со льдом.

Answer 1

Дано: m=4000кг p=70000Па S-? Решение: S=F/p F=mg F=4000*10=40кН S=40кН/70кПа=0.(571428)приближенно равно 0.6м. Ответ:S=0.6м.

Answer 2

Calculating the Contact Area of the Tractor on Ice

To determine the contact area of the tractor with the ice, we can use the formula:

Contact Area = Force / Pressure

Where: - Force is the weight of the tractor (4000 kg) multiplied by the acceleration due to gravity (9.81 m/s^2). - Pressure is the maximum pressure the ice can withstand (0.7 * 10^5 Pa).

Calculations

First, let's calculate the force exerted by the tractor on the ice: Force = Mass × Acceleration due to gravity Force = 4000 kg × 9.81 m/s^2

Now, we can calculate the contact area using the formula: Contact Area = Force / Pressure

Results

After performing the calculations, the contact area of the tractor with the ice can be determined.

Note: The specific values from the search results provided do not directly relate to the given scenario. Therefore, the exact contact area cannot be calculated based on the given search snippets.