Thought Experiment (Jumping of a building)

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SUMMARY

This discussion explores the hypothetical scenario of surviving a fall from a 100-story building by jumping off a cardboard object just before impact. Participants assert that jumping does not negate the downward force but rather alters the dynamics of the fall. The physics involved, specifically the equations of motion and energy conservation, indicate that the downward acceleration upon landing would still result in fatal consequences. The conclusion is that despite the jump, the impact force would likely be lethal.

PREREQUISITES
  • Understanding of basic physics principles, particularly Newton's laws of motion.
  • Familiarity with gravitational potential energy and kinetic energy equations.
  • Knowledge of acceleration and deceleration concepts in free fall.
  • Basic grasp of momentum and impulse in physics.
NEXT STEPS
  • Study the equations of motion under gravity to understand free fall dynamics.
  • Research the concepts of energy conservation in physics, focusing on potential and kinetic energy.
  • Explore real-world applications of impulse and momentum in high-impact scenarios.
  • Investigate safety measures and technologies used in extreme sports to mitigate fall risks.
USEFUL FOR

This discussion is beneficial for physics students, educators, safety engineers, and anyone interested in the mechanics of falling and impact forces.

asc3nd
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1. This was just a quick question that I was thinking about.
If you jump of a really tall building, let's say 100-story building and you fall most likely you won't live to tell the tale.
But let's say you jumped with a cardboard (or any object) and a couple feet before you hit the ground pushed of the cardboard (like a skateboarder) and jumped and landed on the floor.
Would you survive because since you jumped you cancel the downward force.




2. None ... I just thought about it.



3. I pressumed that by jumping you stop the speed you are going down with and after you jump the downward force starts again. But since you are close to the ground your acceleration isn't large enough to do any damage.
 
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asc3nd said:
1. This was just a quick question that I was thinking about.
If you jump of a really tall building, let's say 100-story building and you fall most likely you won't live to tell the tale.
But let's say you jumped with a cardboard (or any object) and a couple feet before you hit the ground pushed of the cardboard (like a skateboarder) and jumped and landed on the floor.
Would you survive because since you jumped you cancel the downward force.


3. I pressumed that by jumping you stop the speed you are going down with and after you jump the downward force starts again. But since you are close to the ground your acceleration isn't large enough to do any damage.

How high can you jump?

At the bottom of your 100 story fall your m*g*h is m*v2/2

You think you have 100 stories of m*g*h packed in your legs?
 

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