Need to demonstrate 44 Newtons of force

  • Context: High School 
  • Thread starter Thread starter stephejo
  • Start date Start date
  • Tags Tags
    Force Newtons
Click For Summary
SUMMARY

The discussion centers on demonstrating a force of 44 Newtons, specifically for the Sellick's maneuver in medical practice. Participants confirm that 44N is equivalent to approximately 10 pounds or 4.5 kilograms. Suggestions for practical demonstrations include using a 10-pound dumbbell or a lever system that requires 10 pounds of force to operate. The conversation also clarifies that a fixed pulley does not alter the force magnitude, only its direction.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with basic physics concepts such as force and leverage
  • Knowledge of Sellick's maneuver in medical practice
  • Experience with simple mechanical systems like pulleys and levers
NEXT STEPS
  • Research the mechanics of levers and how they can demonstrate force
  • Explore the principles of fixed and movable pulleys in physics
  • Learn about the application of force in medical procedures, particularly in emergency medicine
  • Investigate the design of educational models for demonstrating physical concepts
USEFUL FOR

Medical professionals, educators in physics and anatomy, and anyone involved in teaching or demonstrating physical force applications in medical scenarios.

stephejo
Messages
3
Reaction score
0
I hope someone can help me.

I am a medical doctor and need to have a standardized way to demonstrate the force needed to press on the front of the cricoid ring of the larynx (neck) in order to occlude the esophagus (Sellick's maneuver) with the patient lying supine... so the thumb and forefinger press on the front of the neck with 44N.

The studies specify 44 Newtons. How much is that. Looks to me like 10lbs or 4.5kg on earth.

Is there an easy model that I can make and pass around the lecture room to show what about 44N "feels like"??

Thanks.
 
Physics news on Phys.org
Why not just get a 10 lb dumbbell? Or a 10 lb plate for a barbell set?

If you want to have fun, make a lever that requires 10 lbs of force to depress--then students can see just how hard they must push with thumb and forefinger.
 
It's been a long time since college physics... is a simple pulley the same as a lever? If I make a pulley with 10lb and pushing down the end of the pulley the same thing?

Thanks!
 
My first thought was to use some sort of top loading scale. Maybe like this.
4724_100X100.jpg
 
stephejo said:
It's been a long time since college physics... is a simple pulley the same as a lever? If I make a pulley with 10lb and pushing down the end of the pulley the same thing?
Sure, that would work. (There are a zillion ways to go.)
 
Perfect idea.

Thanks!
 
stephejo said:
It's been a long time since college physics... is a simple pulley the same as a lever? If I make a pulley with 10lb and pushing down the end of the pulley the same thing?

Thanks!
Fixed pulley, yes. Fixed pulley does not change the force magnitude. Only direction.