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

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

I’m guessing a black hole swallows the earth

aanuszek1 (2290)

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

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

aanuszek1 (2290)

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.

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.

Perchik (4982)

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.

Mtl_zack (6762)

CHANGE!
(and a new President)

Ort (518)

The unstoppable object will pass through the unmoveable object.

arnbev959 (10893)

Is this like a plane crashing into a mountain?

@Alfreda: a plane isn’t unstoppable.

arnbev959 (10893)

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

Allie (17441)

Twelve.

jholler (2384)

12? 42… maybe.

Allie (17441)

.999999999999999…

arnbev959 (10893)

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)

Perchik (4982)

chuck norris??

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

LKidKyle1985 (6589)

Is this unmovable object also unbreakable?

Wine3213 (1113)

42

Ort (518)

immovable

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

Jeruba (51111)

E=mc2

judochop (16104)

@allie

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.

Foolaholic (5801)

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

Juggy bounced off.

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

Cardinal (2921)

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.

Zaku (25538)

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

Ron_C (14465)

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.”

roundsquare (5517)

or