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Calculating gauge pressure in lungs to produce certain speeds

  • Thread starter tooperoo
  • Start date
36
0
1. Homework Statement
The human sneeze can reach speeds of 150km/hr. Calculate the gauge pressure in the lungs required to generate a flow with this speed at atmospheric pressure. Assume the density of the air is constant at 1.3 kg/m^3.

2. Homework Equations



3. The Attempt at a Solution

I tried solving to get the gauge pressure but i need the height to do this. Also, i tried working with fluid formulas that have velocity in them but i keep getting stuck due to not having all the variables.
 
I would think you could use the Bernoulli equation with the speed in the lungs set to zero. After all it starts out stationary.
 
36
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I might give that a go bud. Thanks!
 

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