What Happens When an Unstoppable Force Meets an Immovable Object?

TL;DR

An immovable object cannot exist because any object can be set in motion by changing reference frames. An 'unstoppable force' also implies an un-acceleratable object with infinite mass, meaning its velocity cannot be changed. In essence, both concepts are equivalent and currently do not exist within the laws of physics as we understand them.

Transcript

What happens if an immovable object meets an unstoppable force? Is a popular question on the internet. Of course, relativity clearly tells us that there is no such thing as an immovable object - here's why: If you pick any supposedly immovable object, or just something like your house or the earth, I can make it move. All I need to do is start to m... Read More

Key Insights

• 🖼️ Relativity demonstrates that there are no truly immovable objects because any object can be made to move by changing the reference frame.
• 😒 An un-acceleratable object, or an object with infinite mass, would not change its velocity regardless of the force applied to it.
• 💱 All forces in nature are unstoppable as they interact with objects and change their momentum.
• 📍 The phrase "unstoppable force" refers to an object that cannot have its velocity changed by pushing on it, which coincides with the concept of an un-acceleratable object.
• 😒 An un-acceleratable object and an immovable object are essentially the same when viewed from different reference frames.
• 😒 Currently, there is no known object or phenomenon in the universe that behaves as an un-acceleratable object due to the impossibility of infinite mass.
• 😒 If an un-acceleratable object existed, it would have immense implications, such as providing infinite free power and potentially enabling time travel and the creation of portals.

Questions & Answers

Q: What is the difference between an immovable object and an un-acceleratable object?

An immovable object is a common term for an object that cannot be moved by pushing on it, while an un-acceleratable object has infinite mass and cannot have its velocity changed by any force.

Q: Can an unstoppable force exist?

All forces in nature, including electromagnetism and gravity, are unstoppable in the sense that they change the momentum of objects they interact with. However, if by "unstoppable force" we mean an object that cannot have its velocity changed, it would be equivalent to an un-acceleratable object.

Q: What would happen if two un-acceleratable objects collided?

If two infinitely massive un-acceleratable objects were moving towards each other, they would pass through each other with no effect on each other since their velocities cannot change.

Q: Why don't we know of anything in the universe that behaves like an un-acceleratable object?

Infinite mass requires infinite energy, and it would also result in a black hole so massive that everything in the universe would be inside it. As of now, we have not observed or discovered anything with infinite mass.

Summary & Key Takeaways

• Relativity tells us that there is no such thing as an immovable object because any object can be made to move by simply moving relative to it.

• An un-acceleratable object, or an "immovable" object in common terms, would have infinite mass, preventing any change in its velocity.

• All forces in nature are unstoppable, as they are caused by particles that interact with objects and change their momentum.