An object that cannot be stopped collides with an object that cannot be moved?

Question

What would happen?

Answer 1

they would crash

Answer 2

well... it can be moved ts moving if when the object collides with it, it transfers its kinetic energy to the unmovable object which starts moving too.

Answer 3

Girl what made you think of this? that's the question. if if was a fifth, who would be sober? lol newton would of been drunk out of his mind...lol

Answer 4

Easy... they both will be moving and stopped at the same time.  Because if you ignore that your statement could never happen then you must equally be able to ignore that my answer cannot happen.

Answer 5

Sounds like an old Knight Rider episode :)

Whenever you enter into conflicting thoughts like that you know the logic is wrong and something must change - either the solid object can move or deform and/or the balistic is not unstopable.

Answer 6

Physically, there are no objects that can't be stopped, as there are no objects that can't be moved.

"This is an example used in intro physics classes to explain elastic collisions. The object that cannot be moved cannot have momentum¹ (mass x velocity), so when the object that cannot be stopped hits the object that cannot be moved, it simply bounces off of it in the opposite direction with the same velocity.²"

¹ Actually, there isn't a single thing in this Universe (as far as we know) that can't have momentum. Even massless particles have momentum.

² It would bounce off with the same speed, but different velocity. (velocity being a vector)

Answer 7

It's like Hulk Hogan and Andre the Giant.  I think the unstoppable force (Hulk) ended up beating the immovable object (Andre).

Answer 8

Ignoring the fact that this isn't actually possible, the answer is pretty simple.

This is an example used in intro physics classes to explain elastic collisions.  The object that cannot be moved cannot have momentum (mass x velocity), so when the object that cannot be stopped hits the object that cannot be moved, it simply bounces off of it in the opposite direction with the same velocity.