Answer the question
In order to leave comments, you need to log in
How to determine the pressure, knowing the load?
Good day. Kindly, tell me how to determine the pressure in pascals, knowing the load in kilograms per square meter.
There is a formula
P=(1.2 * f * p * V^2)/2
where f=2 - safety factor
p - air mass density (kg * s^2 / m^4)
V - speed (m/s)
P - load (kg / m ^ 2)
I decide and get P = 11320 kg / m ^ 2
But it is necessary to find the pressure that this load will create. The problem is that the pascal is essentially a kilogram-force per area. And not just a kilogram-mass. Would it be correct to multiply the resulting value by the acceleration of gravity (g) and get kgf?
After all, F \u003d m * g
Answer the question
In order to leave comments, you need to log in
I don’t know what the coefficients are 1,2 and f, but this is just a formula for dynamic pressure. Substitute the values in some system of units and get the answer in the same system of units.
as for F \u003d m * g, it has nothing to do with gravity, and there are also a bunch of completely different formulas for force for other fields (electrical weak strong) and situations (for example, rotational motion, there will be a different formula)
And you can also see " dimension"
F = m*g here the dimension is kg*m/s2 => P=(kg*m/s2)/m2=kg/(m*c2)
P=(1.2 * f * p * V^2) /2 (kg/m3)*(m/c)2=kg/(m*c2)
the last expressions are the same! Witchcraft is no different!!!)))
Didn't find what you were looking for?
Ask your questionAsk a Question
731 491 924 answers to any question