Question

Лёд выдерживает давление 90000 Па.Пройдет ди по этому льду трактор,на который действует сила тяжести 50000 H,если он опирается на гусеницы общей площадью 1,5м2

Answer 1

(90000-50000)/1,5=26666.667

Answer 2

Calculation of Pressure and Force

To determine if the tractor can pass through the ice, we need to compare the pressure exerted by the tractor with the pressure the ice can withstand.

The pressure exerted by an object is calculated by dividing the force applied by the area over which the force is distributed. In this case, the force is the weight of the tractor, and the area is the total area of the tracks.

Given: - Pressure the ice can withstand: 90,000 Pa - Force of gravity on the tractor: 50,000 N - Total area of the tracks: 1.5 m²

Calculation of Pressure Exerted by the Tractor

To calculate the pressure exerted by the tractor, we divide the force by the area:

Pressure = Force / Area

Substituting the given values:

Pressure = 50,000 N / 1.5 m²

Conversion of Units

Before proceeding with the calculation, we need to convert the force and area into consistent units. Let's convert the force from Newtons (N) to Pascals (Pa) and the area from square meters (m²) to square centimeters (cm²) for convenience.

1 N = 1 Pa 1 m² = 10,000 cm²

Converting the force and area:

Force = 50,000 N = 50,000 Pa Area = 1.5 m² = 1.5 * 10,000 cm² = 15,000 cm²

Calculation of Pressure Exerted by the Tractor (Continued)

Now, we can calculate the pressure exerted by the tractor:

Pressure = 50,000 Pa / 15,000 cm²

Answer

Unfortunately, the given information is incomplete. The pressure the ice can withstand is provided as 90,000 Pa, but we don't have the necessary information to calculate the pressure exerted by the tractor. Without the area over which the force is distributed, we cannot determine if the tractor can pass through the ice.