How can I calculate thrust in Newton from mass flowrate and velocity?
Please note,I have mathematical skills of 7 year old,the most complex task I can do is multiply and divide,I dont understand any equations.
Well the best learning happens when there is a need, and the internet can answer almost any question. Easiest way to understand physics is to use SI derived units and always carry your units through your equation.
velocity = 5 m/s
mass flowrate = ?kg/s
volumetric flowrate = 5m^3/s
Thrust: ? Newtons = kg*m/s^2
I asked google what the mass of a cubic meter of air was:
density = 1.293 kg/m^3
The density lets us convert your volumetric flow into mass flow:
(looks like googles calculator carries units now which is cool)
5m^3/s * 1.293 kg/m^3 = 6.465 kg/s
mass flow = 6.465 kg/s
Now we just multiply mass flow and velocity and confirm our units work out:
6.465 kg/s * 5 m/s = 32.325N
So the thrust is 32.325N or 7.27 pounds force