What Would Happen If a High Mass Object Hit a Wall at High Velocity Near Me?

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Discussion Overview

The discussion explores the hypothetical scenario of a very high mass object colliding with a wall at high velocity, focusing on the effects on a person standing on the other side of the wall. It examines the nature of waves transmitted through the wall, including sound and shock waves, as well as electromagnetic radiation resulting from the collision.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants propose that if the wall withstands the collision, only acoustic and electromagnetic radiation would reach a person standing nearby.
  • Questions arise about how electromagnetic radiation would be generated and the nature of acoustic radiation.
  • One participant suggests that a shock wave will form in the wall and potentially in the air behind it, depending on the wall's thickness and the collision parameters.
  • There is a distinction made between sound waves and shock waves, with inquiries about their differences in terms of speed, pressure, and density.
  • Some participants assert that sound waves may not be harmful, while others question the differences between sound waves and destructive shock waves from extreme collisions.
  • Repeated assertions about the process of collision leading to heat and electromagnetic radiation are made, with some noting that infrared radiation may be absorbed by the wall.

Areas of Agreement / Disagreement

Participants express differing views on the nature and effects of sound and shock waves, as well as the conditions under which they might be harmful. The discussion remains unresolved regarding the specifics of how these waves interact with a person standing near the wall.

Contextual Notes

Limitations include assumptions about the wall's integrity, the parameters of the collision, and the definitions of sound and shock waves. The discussion does not resolve the complexities of these interactions.

autodidude
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If an object of VERY high mass were to hit a hypothetical wall at a high velocity and the wall somehow withstood that, what would happen to you if you were standing on the other side close to the wall but not touching it? Would there be some sort of wave transmitted through it? If so, would this wave that hurts you be the sound wave?

So would shock wave be some sort of sound wave as well?
 
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If the wall stays intact - or at least its side closest to you does - then all that can reach you is acoustic and electromagnetic radiation.
 
How would EM radiation be generated? And what is acoustic radiation?
 
Collision -> heat -> EM radiation.

Acoustic radiation = sound.
 
So the sound wouldn't be able to hurt you? What's the difference between a sound wave and the destructive shock/pressure wave from explosives, 'extreme collisions' (e.g. meteors)?
 
A shock wave will definitely form in the wall. If the wall is thick enough to withstand the collision but not thick enough to attenuate the shock wave, a shock wave will also form in the air behind the wall. Whether it will be able to hurt you depends on the parameters of the collision.
 
voko said:
Collision -> heat -> EM radiation.

well there may be a little bit of IR radiation (EM radiation)
but if the wall doesn't crumble you won't see that as its likely to be absorbed by the wall anyway

Dave
 
So would the shock wave be the result of the colliding particles in the wall that hit the air? Also, if sound is basically collision of particles transferring a wave as well - what's the difference? Speed?
 
autodidude said:
Also, if sound is basically collision of particles transferring a wave as well - what's the difference? Speed?

Speed, pressure, density. Read this: http://en.wikipedia.org/wiki/Shock_wave
 

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