Suppose you are a police investigator and are investigating two car accidents. Before

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Suppose you are a police investigator and are investigating two car accidents. Before you even go to either accident scene, you know (interestingly) that both accidents were identical head – on collisions with identical cars moving at identical speeds, but in one case the cars locked bumpers while in the other case they bounced off each other elastically. From a physics point of view, which accident is more dangerous? Please explain.
 

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tiny-tim
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welcome to pf!

hi mcneilmo! welcome to pf! :wink:

tell us what you think, and then we'll comment! :smile:
 

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