Calculating gauge pressure in lungs to produce certain speeds

AI Thread Summary
To calculate the gauge pressure in the lungs necessary for a sneeze reaching 150 km/hr, the density of air is considered constant at 1.3 kg/m^3. The discussion highlights the challenge of determining gauge pressure due to missing variables, particularly height. The Bernoulli equation is suggested as a potential method, assuming the initial speed in the lungs is zero. Participants express difficulties in solving the problem without all required parameters. The conversation emphasizes the need for a comprehensive understanding of fluid dynamics to find a solution.
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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.

Homework Equations





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.
 
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I would think you could use the Bernoulli equation with the speed in the lungs set to zero. After all it starts out stationary.
 
I might give that a go bud. Thanks!
 
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