What would happen if normal force didnt exist?

In summary, the conversation discusses the concept of gravity and how it affects objects on Earth. It is mentioned that if gravity were to increase, objects would eventually fall to the center of the Earth, creating a black hole. The Normal force is also explained as a balancing force that prevents objects from falling through surfaces. It is noted that the Normal force is not a fundamental force, but rather a result of electrostatic repulsions. The conversation ends with a discussion on the potential consequences if electrostatic force did not exist.
  • #1
ranger
Gold Member
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The title says it all.
--thank you
 
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  • #2
Things would fall through your table, through the floor, through the ground till they reached the center of the Earth. Even the ground would fall to the center of the Earth. I guess every gravity well would become a black hole.

Force Normal holds things up. It balances the force of an object pushing down.

But don't worry, it can't happen.
 
  • #3
Thanks for clearing that up. Its hard to imagine how any life could possibly exist without it. I had know idea that it had such a great impact.
 
  • #4
The normal force between a table and a book resting on it arises from the electrostatic repulsions between the electrons in the book and the electrons in the table.
So, the Normal force is not a fundamental force. It is merely a consequence of the electrostatic force.
 
  • #5
i feel gravitational force of a body would keep increasing due to increasing mass and one more thing that would happen is theb reverse of the BigBang that is eventually we will end up with just a singular large mass at the center of the universe.
 
  • #6
i believe sidharth is right. but just imagine electrostatic force didnt exist but gravitational force existed
 

1. What is normal force and why is it important?

Normal force is the force that acts perpendicularly to the contact surface between two objects. It is important because it is what allows objects to stay in place and not fall through surfaces, as well as providing support for objects to stay in equilibrium.

2. What would happen if normal force didn't exist?

If normal force didn't exist, objects would not have any support to stay in place or remain in equilibrium. This means that objects would constantly be falling through surfaces, making it impossible for structures to exist and for objects to stay in place.

3. How does normal force affect motion?

Normal force affects motion by providing an opposing force to the weight or force of an object. This allows objects to remain in place and not accelerate due to gravity or external forces. Normal force also affects the direction of motion, as objects will move in the direction of the applied force.

4. Can normal force ever be zero?

Yes, normal force can be zero in certain situations. For example, when an object is placed on a perfectly smooth surface, there is no normal force acting on it because there is no contact between the object and the surface. Additionally, if an object is in free fall, there is no normal force acting on it.

5. How is normal force related to other types of forces?

Normal force is related to other types of forces in that it is often the result of other forces acting on an object. For example, when an object is resting on a surface, the normal force is equal and opposite to the weight of the object. Normal force is also related to frictional forces, as it can affect the amount of friction between two surfaces in contact.

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