What is the pressure on a square table with an area of 1 square meter and a weight of 20 N What is the pressure on the table when a 20 N cube with an area of 0.5 square meters is placed on a horizontal table with an area of 1 square meter?

What is the pressure on a square table with an area of 1 square meter and a weight of 20 N What is the pressure on the table when a 20 N cube with an area of 0.5 square meters is placed on a horizontal table with an area of 1 square meter?

F =G=20 N P=F/S=20N/0.5m2=40Pa

A solid cube copper block with a weight of 89n is placed in the center of a horizontal tabletop with an area of 1m2. What is its pressure on the tabletop

m=G/g=89/10=8.9kg
v=m/p=8.9/8900=0.001m^3
So the side length is 0.1M,
Because the area of the bottom is less than the area of the table, the stress area is 0.01M ^ 2
So the pressure P = f / S = g / S = 89 / 0,01 = 8900 PA

There is a cube copper block with a mass of 8.9kg, which is placed in the center of the horizontal table top with an area of 1m3, to find out the pressure of the pressure box on the table top

First of all, according to the mass, the bottom area of the copper block can be calculated as 1 square decimeter. Therefore, the stressed area is the bottom area of the copper block. Then, according to the formula P = f / S = g / s
In horizontal plane, f = g = 8.9kg * 10N / kg = 89n, s = 0.1M * 0.1M = 0.01m2
P=89N/0.01m2=8900Pa