Say, if we have two trucks travelling towards eachother at 60m/s, and those two trucks carry the same payload, and are the same model (aka they're exactly the same), will the collision force be as if just one truck crashed into a wall at 120m/s?

Theoretically the forces will balance each other out, but it won't always be this way.


marked as duplicate by BMS, DavePhD, John Rennie, Brandon Enright, DumpsterDoofus Apr 15 '14 at 19:27

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  • $\begingroup$ Are you familiar with the similar problem of a horse pulling a rope attached to a pole compared to two horses pulling a single rope in opposite directions? $\endgroup$ – BMS Apr 15 '14 at 16:18
  • $\begingroup$ Do you want elastic collisions or 'smashing' collisions? $\endgroup$ – Shubham Apr 15 '14 at 16:55
  • $\begingroup$ Set up an experiment and test it ;) $\endgroup$ – Antonio Ragagnin Apr 15 '14 at 18:34
  • $\begingroup$ To paraphrase the duplicate answer, the answer is that a truck at 120mph hitting a wall is more forceful than two trucks each at 60mph colliding head-on. $\endgroup$ – DumpsterDoofus Apr 15 '14 at 19:30

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