Question

На полу стоит куб массой 5 кг. Ребро куба равно 10 см какое давление оказывает куб?

Answer 1

P=m*g/S=5*10/0,1^2=5000 Па

Answer 2

Calculation of Pressure Exerted by the Cube

To calculate the pressure exerted by the cube, we can use the formula:

Pressure = Force / Area

In this case, the force is equal to the weight of the cube, and the area is the area of one face of the cube.

Given: - Mass of the cube = 5 kg - Side length of the cube = 10 cm

To find the weight of the cube, we can use the formula:

Weight = Mass * Acceleration due to gravity

The acceleration due to gravity is approximately 9.8 m/s^2.

Converting the side length from centimeters to meters, we have:

Side length of the cube = 10 cm = 0.1 m

Now, let's calculate the weight of the cube:

Weight = 5 kg * 9.8 m/s^2

Using a calculator, we find that the weight of the cube is 49 N (Newtons).

Next, let's calculate the area of one face of the cube:

Area = (Side length)^2

Area = (0.1 m)^2

Using a calculator, we find that the area of one face of the cube is 0.01 m^2.

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

Pressure = Weight / Area

Pressure = 49 N / 0.01 m^2

Using a calculator, we find that the pressure exerted by the cube is 4900 Pa (Pascals).

Therefore, the cube exerts a pressure of 4900 Pa.