If the mass of the bulldozer is 1.8 times 10 to the fourth power kg, and the track landing area is 2.4m square, the pressure of the bulldozer on the horizontal ground is 0

Newton's third law, pressure = specific gravity = 4.9 × 10 ^ 4N;
Acceleration of gravity g = mg, g = 9.8n/kg, upper mass m = 49000 / 9.8 = 5000 kg
P = f / S = 49000 / (2x0.7) = 3.5x10 ^ 4pa

RELATED INFORMATIONS

1. The rated power of the engine is 120km. The mass is 1.5 times 10 to the fourth power kg. The contact area between each track and the ground is 1.25m square. (g = 10N / kg)
2. The height of an iron cylinder is 10cm. What is its pressure on the horizontal ground? (the density of iron = 7.9 * 10 cubic kg / m, g * 10N / kg)
3. The density of a brick is 2 × 10 cubic kilogram per cubic meter, the pressure it can bear is 5 × 10 quintic Pascal, and the length, width and height are 24, 12 and 6cm respectively Ask: 1. Put a brick flat on the ground, how much pressure does the ground receive? 2. What is the maximum height that can be built by using this brick to repair a cylindrical chimney? (g = 10 N / kg)
4. The density of a certain brick is 2 × 10 cubic kilogram per cubic meter, the pressure it can bear is 5 × 10 quintic Pascal, and the length, width and height of the brick are 3 × 10 cubic kilogram per cubic meter The density of a brick is 2 × 10 cubic kilogram per cubic meter, the pressure it can bear is 5 × 10 quintic Pascal, and the length, width and height are 24, 12 and 6cm respectively What is the maximum height that can be built by using this brick to repair a cylindrical chimney? (g = 10 N / kg) Why H = P / ρ G
5. The weight of an elephant is 6 tons, and the area of each foot is 600 CM & sup2;, so when the elephant stands, what is the pressure and pressure on the ground
6. An elephant with a mass of 6 × 10 cubic, the area of each foot is 600 square centimeter. What is the pressure on the ground when it lands on four feet
7. The weight of an elephant is 6 times 10 to the fourth power, and the area of each foot is 600 per square centimeter?
8. The mass of an elephant is 5000kg, and the area of each foot is 600cm2. Please estimate the pressure on the ground when the elephant stands on four feet? In the form of knowing, seeking, solving and answering
9. An elephant weighs 600 kg. The contact area between the foot and the ground is 600 square centimeters. How much pressure does the elephant exert on the ground when it stands on the ground with four feet? How much pressure does the elephant put on the ground when raising its feet
10. The weight of an elephant is 5000kg, and the area of each foot is about 600cm square. How much pressure does the elephant put on the ground when standing on four feet? (process)
11. As shown in the figure, the amphibious infantry combat vehicle has a mass of 22T and a total track landing area of 4m2. (g = 10N / kg, ρ water = 1.0 × 103kg / m3) (1) what is the pressure of the vehicle on the horizontal ground? (regardless of the mass of the person on the tank) (2) the tank has the function of hitting the target and transporting on the water. In a water drill, the volume of water discharged by the tank is 23 m3. What is the buoyancy of the tank? (3) In this water exercise, the pressure of water on the chariot is 1.5 × 104pa. What is the depth of this place?
12. An elephant weighs 6000 kg, with an area of 600 square centimeters per foot. The pressure of his four feet on the ground? G = 10 N / kg
13. The weight of an elephant is 6x10 cubic kg, and the area of each foot is about 600cm & sup2 1. Find the gravity of the elephant 2. If the elephant raises one leg, calculate its pressure on the ground (G is 10N / kg)
14. A cubic rubber clay with side length of 10cm and density of 1.5x10 cubic kg / m3 is immersed in water to drain the volume of water For (), the mass of the boiled water is (), the gravity of the boiled water is (), the buoyancy of the plasticine is (). If the plasticine is made into a boat and floats on the water, the buoyancy received by Ogawa is (), the volume of the boiled water is () Good answer + 20
15. A cube with a side length of 8 cm is placed on the ground of 100 square cm. Its pressure on the ground is 6.125 × 10 to the third power. The density of this solid body is?
16. Place a square block with a mass of 25kg and a side length of 10cm in the center of a horizontal table with an area of 1m2. What is the pressure of the block on the table? What is the pressure Pa? If the object is cut half in the vertical direction, what is the pressure of the remaining part on the table? (G is 10N / kg)
17. Cube a with a side length of 10 cm is placed on a horizontal table of 0.1 cm2, and the pressure on the table is 2000 PA?
18. If the pressure of the two solid cubes on the horizontal ground is F1 and F2 respectively, then () A. F1 = f2b. F1 ＜ F2C. F1 ＞ F2D
19. When the cube A and cube B are placed on the horizontal table, their pressure on the table is equal, and the ratio of pressure is 9:4, then the ratio of density of cube A and cube B is () A. 2：3B. 3：2C. 1：1D. 4：9
20. When the cube A and cube B are placed on the horizontal table, their pressure on the table is equal, and the ratio of pressure is 9:4, then the ratio of density of cube A and cube B is () A. 2：3B. 3：2C. 1：1D. 4：9