Question

Какое давление производит книга весом 8 Н на столе если площадьтего соприкосновения 4дм2?

Answer 1

P=P/s
S=0,04 м2
p=8/0,04=200 Па

Answer 2

Calculating Pressure Exerted by a Book

To calculate the pressure exerted by the book on the table, we can use the formula:

Pressure = Force / Area

Where: - Force is the weight of the book, which is 8 N (Newtons). - Area is the contact area between the book and the table, which is 4 dm^2 (square decimeters).

Calculation

Using the given values: - Force (F) = 8 N - Area (A) = 4 dm^2

We can calculate the pressure using the formula:

Pressure = Force / Area

Substituting the values: Pressure = 8 N / 4 dm^2

Converting the area to square meters (1 dm^2 = 0.01 m^2): Pressure = 8 N / (4 * 0.01 m^2) Pressure = 8 N / 0.04 m^2 Pressure = 200 N/m^2

Answer

The pressure exerted by the book weighing 8 N on the table with a contact area of 4 dm^2 is 200 N/m^2.