I would say the unstoppable force would continue along the unmovable object in the direction it was most facing when they collided.

It's just an impossible question. For an object to be unstoppable (assuming the force is being carried by an object) it must have infinite mass or infinite speed (as it must be able to decelerate at any rate infinitely, F = ma). Infinite speed is impossible due to the limit of speed of light, and infinite mass is also physically impossible.
Assuming the force is a field then it's equally impossible. Electric field would require infinite charge and therefore infinite mass, gravitational field would require infinite mass, and so on.

lol ,what ?
all that something needs , in order to be unstoppable
is to not interact with anything

No shit, sherlock. But, obviously, we were talking about an unstoppable force interacting with a immovable wall.

My solution allows for both to be true.
One object does not stop, the other does not move.

This post was edited by Lifebane99 on Sep 14 2012 04:50am

Yeah, your solution satisfies the logical problem. When I say impossible I don't mean impossible to answer, I mean the scenario itself is impossible. It invites the application of known physical laws, however its precepts go against them to start with, which makes it a pretty meaningless question even if you can satisfy the semantics.

True, but if we change the term to "relatively unstoppable force and immovable object"

Its meant to stimulate discussion and test your level of familiarity with physics.

A star is made.

Use batman reference when joker mentions it then say in remembrance of the colorado indecent.. then tebow..