Have a Solution for the Exploding Grenade Problem?

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The discussion revolves around the "exploding grenade problem," which illustrates how, during an explosion, all fragments appear to move away from any observation point, relating to the concept of the center of mass (COM). Participants explore the dynamics of COM and its implications for understanding the explosion's effects. The conversation touches on the mathematical aspects, suggesting that one would need to determine the number of fragments and their trajectories to demonstrate their receding motion. The mention of spherical scattering indicates a potential simplification for analyzing the problem. Overall, the thread seeks specific references or solutions related to this physics concept.
metrictensor
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Does anyone have a reference or know where I can see the solution to the exploding grenade problem?
 
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What's the "exploding grenade" problem?
 
Is this an application of the dynamics of the COM ?

marlon
 
marlon said:
Is this an application of the dynamics of the COM ?

marlon
What is the COM?
 
center of mass
 
marlon said:
center of mass
I don't know. I heard about a problem where inside an explosion (if you can not see the edge of the explosion) then at any point it appears as if everything is moving away from that point. It is was also used to describe how the universe looks like it is expanding no matter when you look from.
 
look up divergance
 
gregmead said:
look up divergance
I know about divergence and Green's Theorem, etc. I am looking for the specific problem.
 
well I guess if you want to do a specific problem you'd have to work out how many pieces the grenade is going to split up into and then somehow prove that they are all receding from one another...

assuming it is a spherical scattering it should be fairly easy...
 

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