Calculate Force on Wall from Tornado Pressure: N Units

  • Thread starter Thread starter PeachyKeenZen
  • Start date Start date
  • Tags Tags
    Force Wall
Click For Summary
SUMMARY

The discussion focuses on calculating the outward force exerted on a wall by tornado pressure, specifically at a pressure of 0.46 atm. The correct approach involves converting the atmospheric pressure to Pascals (Pa) using the conversion factor of 1.013 x 10^5 Pa per atm, resulting in a pressure of 46598 Pa. The area of the wall is calculated as 34.1 m² (6.2m x 5.5m), leading to the final force calculation using the formula F = PA, yielding a force of approximately 1,590,000 N.

PREREQUISITES
  • Understanding of pressure units, specifically atmospheric pressure and Pascals.
  • Familiarity with the formula for force, F = PA, where P is pressure and A is area.
  • Basic knowledge of area calculation for rectangular surfaces.
  • Ability to perform unit conversions between atm and Pa.
NEXT STEPS
  • Study the principles of fluid dynamics related to pressure differentials.
  • Learn about the effects of tornadoes on structures and building codes for wind resistance.
  • Explore advanced calculations involving dynamic pressure in tornadoes.
  • Investigate the use of simulation software for modeling tornado impacts on buildings.
USEFUL FOR

Engineers, architects, meteorologists, and anyone involved in disaster preparedness and structural integrity assessments in tornado-prone areas.

PeachyKeenZen
Messages
2
Reaction score
0
Air within the funnel of a large tornado may have a pressure of only 0.46 atm.
What is the approximate outward force F on a 6.2m x 5.5m wall if a tornado suddenly envelopes the house? Atmospheric pressure is 1.013 x 10^5 Pa. Answer in units of N.

I know that P= F/A, so F=PA. I tryed just multiplying the pressure and area, but that was not correct. I also tried converting atms to Pa and then multiplying; however, that was also incorrect.

Help me, please.
 
Physics news on Phys.org
Welcome to PF.

What pressure did you use to find the force?
 
.46 atm.
I mulitiplied .46 and 1.013 x 10^5 to convert atm to Pa. And I got 46598 Pa and then mulitiplied that by 34.1 m^2 (6.2m x 5.5m) to solve for the force.
 

Similar threads

What is the relationship between tire size and pressure changes?
  • · Replies 13 ·
Replies
13
Views
1K
Calculating Outward Force of a Tornado on a Wall
  • · Replies 5 ·
Replies
5
Views
4K
Fluids: Concept about Fluid Pressure in a relation with Force and Area
  • · Replies 6 ·
Replies
6
Views
3K
Convert J/mol k into atm cm^3/mol k
  • · Replies 6 ·
Replies
6
Views
7K
Estimate stopping force of roof versus tornado
  • · Replies 20 ·
Replies
20
Views
3K
Determine Force on 6ft Door Due to Water & Air Pressure
  • · Replies 7 ·
Replies
7
Views
2K
Magnetic energy density, and pressure due to magnetic force
  • · Replies 23 ·
Replies
23
Views
6K
Pressure question: Weight of a car calculated from tyre contact patch area
  • · Replies 3 ·
Replies
3
Views
1K
Calculating Pressure Increase in a Syringe | 43 N Force, 1.1 cm Radius Plunger
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad [Question] Calculating the force generated by a tarp hung between two walls
  • · Replies 14 ·
Replies
14
Views
2K