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Physics meltdown

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Original post by TylerJM
I've got all that I just don't know what the recoil is, are there certain types?


When they reference recoil here I assume they mean the velocity of the volcano after the event, ie. it's recoil velocity. Recoil by definition is the backward momentum or 'kick-back', so would usually be vrecoilmobjectv_{recoil}m_{object}, the question isn't clear enough to determine exactly what they are looking for unfortunately.

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