General Question

aanuszek1's avatar

What happens when an unstoppable object collides with an unmoveable object?

Asked by aanuszek1 (2290points) December 27th, 2008
Observing members: 0 Composing members: 0

27 Answers

aanuszek1's avatar

I’m guessing a black hole swallows the earth

AlfredaPrufrock's avatar

Should it be the other way around, an unstoppable object collides with an unmovable object? Otherwise, there would be no collision?

aanuszek1's avatar

My bad. I fixed that. Bear with me though, it’s 12:48 AM

AlfredaPrufrock's avatar

All I remember from physics is, if you’re in a canoe, and you throw a cinder block off the back of the canoe, the canoe moves backwards, then forwards. Or something like that.

Perchik's avatar

I think it will bounce and go in the opposite direction at the original speed.

Problems that deal with absolutes like this are impossible. No object is completely unstoppable.

Mtl_zack's avatar

My dad read a book about Einstein and he said it mentioned this sorta thing. I wasn’t listening though. It had to do with the limits of the universe and how the universe is infinite and finite at the same time.

Ort's avatar

(and a new President)

arnbev959's avatar

The unstoppable object will pass through the unmoveable object.

AlfredaPrufrock's avatar

Is this like a plane crashing into a mountain?

arnbev959's avatar

@Alfreda: a plane isn’t unstoppable.

Allie's avatar

Did this remind anyone else of a line from The Dark Knight?

Allie's avatar

12? 42… maybe.

arnbev959's avatar


Perchik's avatar

On second thought, bouncing requires a decrease of speed an increase of speed. Somewhere in there, the object would be stopped, (only for a split second, but that wouldn’t be possible if it was truly unstoppable)

tiffyandthewall's avatar

chuck norris??

LKidKyle1985's avatar

trick question, there is no unstoppable or unmovable object in the universe. pow

Wine3213's avatar

Is this unmovable object also unbreakable?

Jeruba's avatar


The classic wording of this very old question is “What happens when an irresistible force meets an immovable object?”

Foolaholic's avatar


That’s exactly what comes to mind!
“This is what happens when an unstoppable force meets an immovable object. I think we’re destined to do this forever.”

Anyway, there was an scenario of this is Zelda; Link’s Awakening in which you’ve got the “ultimate sword” vs. the “ultimate shield”, and in that case the two destroyed each other, so I would say one of these two outcomes.

cookieman's avatar

This is also a comic book reference – said by the Juggurnaut (unstoppable) to the Blob (immovable).

Juggy bounced off.

Cardinal's avatar

No, I think thirteen is the answer, I just don’t know the question.

Zaku's avatar

Three possibilities:

1) Unstoppable doesn’t mean unreflectable, so the unstoppable object bounces off the unmovable object and goes in another direction without stopping.

2) The objects move through each other as others have suggested.

3) The human calling them unstoppable and unmovable makes their theories more accurate by observing what happens. A model of physics with immovable objects and irresistible forces is sloppily defined and/or inconsistent. But models of physics are just ideas.

Ron_C's avatar

I would guess that you get nuclear fusion and a really big energy release.

roundsquare's avatar

A universe where both exist and can collide is logically inconsistent and therefore can’t exist.

Edit: @Zaku has a good point about being reflected, so I assume “unstoppable” means “can’t be made to change direction.”

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