On the support of which area should a weight of 200H be placed to produce a pressure of 400 kPa.

Given:

P = 200 Newton – weight of a certain load;

N = 400 kPa is the pressure that must be generated with this weight.

It is required to determine s (m2) – support area.

Let’s convert the units of measurement of pressure to the SI system:

N = 400 kPa = 400 * 10 ^ 3 = 400 * 1000 = 400000 Pascal.

Then, to determine the area of the support, you must use the following formula:

N = P / s, from here we get that:

s = P / N = 200/400000 = 2/4000 = 0.0005 m2.

Answer: To create a pressure of 400 kPa, a support of 0.0005 m2 is required.