Question

A force of 120 ON acts on the surface of ares 10 cm? normally. What would be the pressure on the surface ?​

Answer 1

Answer:

First, 10 cm is not an area. I think you mean 10 cm², right?. I have not been in physics class for about 50 years, but I think you’re talking about newtons when you say 1200 N. 10 cm² is .001 m^2. We do need the proper units. We need to divide the newtons by the area on which it is a normal force. So we have 1/1000 of a square meter already, and we will take 1200 N and divide that by .001 m². = 1.2 million N/ Square meter.

Now if you meant to say that the area was 10 cm on the side, then the total area is 100 cm². Without having to go through all the math again, we can see that the pressure on that area will be 1/10 what it was for 10 cm². So the pressure will be 120,000 N per square meter.

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