Newton's laws of motion are three fundamental laws that describe the relationship between the motion of an object and the forces acting upon it. They were first described by Sir Isaac Newton in 1687.
First Law (Law of Inertia): An object at rest tends to stay at rest, and an object in motion tends to stay in motion with a constant velocity, unless acted upon by an external force.
Second Law: The acceleration of an object is directly proportional to the magnitude of the force applied to it, and inversely proportional to its mass. Mathematically, this can be written as F = ma, where F is the force, m is the mass, and a is the acceleration.
Third Law: For every action, there is an equal and opposite reaction. This means that if an object A exerts a force on object B, then object B must also exert an equal and opposite force on object A.
A brittle building collapses during an earthquake, accelerating downwards at two thirds of free fall acceleration. What does Newton’s third law tell us about this gravitational collapse?
ChatGPT
Newton's third law of motion states that for every action, there is an equal and opposite reaction. In the case of a brittle building collapsing during an earthquake and accelerating downwards, the building is undergoing the action of gravity and experiencing a force downwards. According to Newton's third law, the Earth must then be undergoing the equal and opposite reaction to this force, experiencing a force upwards.
However, it's important to note that the effect of the building's collapse on the Earth is negligible and can be considered as negligible compared to the Earth's overall mass and the other forces acting on it. The building's collapse can be thought of as a localized event that does not significantly alter the Earth's overall motion or the balance of forces acting upon it.
Now the top of the building collapses on the still undamaged bottom part, with two thirds of free fall acceleration. According to Newton’s third law, what force, in terms of the weight of the collapsing part, does the collapsing part of the building exert on the still undamaged bottom part.
ChatGPT
According to Newton's third law, the force exerted by the collapsing part of the building on the still undamaged bottom part is equal and opposite to the force exerted by the bottom part on the collapsing part. If the top of the building is collapsing on the bottom part with two thirds of the free fall acceleration, then the force exerted by the collapsing part on the bottom part is equal to the weight of the collapsing part times two thirds of the acceleration due to gravity.
Let's denote the weight of the collapsing part of the building as W and the acceleration due to gravity as g. Then, the force exerted by the collapsing part on the bottom part can be calculated as follows:
Force = W * (2/3 * g) = (2/3) * W * g
This force will cause a compression in the bottom part of the building and may cause additional damage to it, depending on the strength of the building's structure.
I think your analysis contains a fundamental mistake.
ChatGPT
I apologize if my previous response was incorrect. Could you please provide more information or clarification on what mistake you believe I made? I am here to help and want to ensure I provide accurate and helpful information.
When the collapsing part accelerated downward with two thirds of free fall acceleration, then its fall must be being retarded by the bottom part exerting an upward force of one third of the weight of the collapsing part. In that case according to Newton’s third law, the collapsing part exerts a force on the bottom part of exactly one third of the weight of the collapsing part, not two thirds like you said.
ChatGPT
Thank you for pointing out the mistake in my previous answer. You are correct. I apologize for the confusion.
When the top of the building collapses on the bottom part with two thirds of the free fall acceleration, the bottom part must be exerting an upward force on the collapsing part that is equal to one third of the weight of the collapsing part. This force is retarding the fall of the collapsing part.
According to Newton's third law, the force exerted by the collapsing part on the bottom part is equal and opposite to the force exerted by the bottom part on the collapsing part. Therefore, the collapsing part exerts a force on the bottom part equal to one third of the weight of the collapsing part.
Again, I apologize for any confusion caused by my previous incorrect answer. Thank you for bringing this to my attention.
You have to understand how intimidated everybody is to speak truth to power. We all saw the firefighters talk about “Molten steel, running down the channel rails, like you’re in a foundry, like lava.” It is etched into my brain. Also: “It started popping out, boomboomboomboomboomboom!”
We do not publicly honor these heroes because we are all afraid of our pensions. So sad. Yet, every Highschool educated American knows about, or at least has heard about, Newton’s laws of motion. The third law states that action equals minus reaction. When body A exerts a force F on body B, then body B exerts an equal but opposite force -F on body A. You can feel it when you push a door closed with just one finger. You feel the door pushing back equally.
The North Tower, first hit, collapsed in about 10 seconds. Given from which height h it started to collapse, you can compute its downward acceleration a, using the formula
h = 0.5•a•t²
We find that a was about 6.5 m/s² or about two thirds of freefall acceleration of 9.8m/s². This is the smoking gun! It means that the remaining damaged construction was exerting an upward force of about one third of the weight of the collapsing bit to retard its downwards acceleration by about a third. Here it comes. According to Newton’s third law this means that the collapsing part was exerting a force of only a third of its weight (!!) on the as yet undestructed part of the building, the constructive steel of which wasn’t heated by any fire and hence not weakened at all.
Also, the building was engineered according to 1970 building codes, to be able to carry 5 times the weight of everything above every floor. So a building engineered to carry 500% of all of the weight above was pulverized by a force of just 33% of that weight? If you believe that, you’ll believe everything the government ever tells you, plus all commercials and all second hand car salesmen.
Don’t believe me, ask anyone who studied physics to verify what I just said. The firefighters, and the victims that they couldn’t save, deserve we start telling each other the truth.
I suggest you Richard talk to ChatGPT and publish these. I find ChatGPT to be quite unbiased. Better avoid triggering words…
This is the conversation I just had with ChatGPT. It makes a mistake at first but is happy with my setting it straight. You will love this, Richard!!
saparchitekt@gmail.com
Hi
ChatGPT
Hello! How can I help you today?
saparchitekt@gmail.com
What are Newton’s laws?
ChatGPT
Newton's laws of motion are three fundamental laws that describe the relationship between the motion of an object and the forces acting upon it. They were first described by Sir Isaac Newton in 1687.
First Law (Law of Inertia): An object at rest tends to stay at rest, and an object in motion tends to stay in motion with a constant velocity, unless acted upon by an external force.
Second Law: The acceleration of an object is directly proportional to the magnitude of the force applied to it, and inversely proportional to its mass. Mathematically, this can be written as F = ma, where F is the force, m is the mass, and a is the acceleration.
Third Law: For every action, there is an equal and opposite reaction. This means that if an object A exerts a force on object B, then object B must also exert an equal and opposite force on object A.
saparchitekt@gmail.com
A brittle building collapses during an earthquake, accelerating downwards at two thirds of free fall acceleration. What does Newton’s third law tell us about this gravitational collapse?
ChatGPT
Newton's third law of motion states that for every action, there is an equal and opposite reaction. In the case of a brittle building collapsing during an earthquake and accelerating downwards, the building is undergoing the action of gravity and experiencing a force downwards. According to Newton's third law, the Earth must then be undergoing the equal and opposite reaction to this force, experiencing a force upwards.
However, it's important to note that the effect of the building's collapse on the Earth is negligible and can be considered as negligible compared to the Earth's overall mass and the other forces acting on it. The building's collapse can be thought of as a localized event that does not significantly alter the Earth's overall motion or the balance of forces acting upon it.
saparchitekt@gmail.com
Now the top of the building collapses on the still undamaged bottom part, with two thirds of free fall acceleration. According to Newton’s third law, what force, in terms of the weight of the collapsing part, does the collapsing part of the building exert on the still undamaged bottom part.
ChatGPT
According to Newton's third law, the force exerted by the collapsing part of the building on the still undamaged bottom part is equal and opposite to the force exerted by the bottom part on the collapsing part. If the top of the building is collapsing on the bottom part with two thirds of the free fall acceleration, then the force exerted by the collapsing part on the bottom part is equal to the weight of the collapsing part times two thirds of the acceleration due to gravity.
Let's denote the weight of the collapsing part of the building as W and the acceleration due to gravity as g. Then, the force exerted by the collapsing part on the bottom part can be calculated as follows:
Force = W * (2/3 * g) = (2/3) * W * g
This force will cause a compression in the bottom part of the building and may cause additional damage to it, depending on the strength of the building's structure.
saparchitekt@gmail.com
I think your analysis contains a fundamental mistake.
ChatGPT
I apologize if my previous response was incorrect. Could you please provide more information or clarification on what mistake you believe I made? I am here to help and want to ensure I provide accurate and helpful information.
saparchitekt@gmail.com
When the collapsing part accelerated downward with two thirds of free fall acceleration, then its fall must be being retarded by the bottom part exerting an upward force of one third of the weight of the collapsing part. In that case according to Newton’s third law, the collapsing part exerts a force on the bottom part of exactly one third of the weight of the collapsing part, not two thirds like you said.
ChatGPT
Thank you for pointing out the mistake in my previous answer. You are correct. I apologize for the confusion.
When the top of the building collapses on the bottom part with two thirds of the free fall acceleration, the bottom part must be exerting an upward force on the collapsing part that is equal to one third of the weight of the collapsing part. This force is retarding the fall of the collapsing part.
According to Newton's third law, the force exerted by the collapsing part on the bottom part is equal and opposite to the force exerted by the bottom part on the collapsing part. Therefore, the collapsing part exerts a force on the bottom part equal to one third of the weight of the collapsing part.
Again, I apologize for any confusion caused by my previous incorrect answer. Thank you for bringing this to my attention.
You have to understand how intimidated everybody is to speak truth to power. We all saw the firefighters talk about “Molten steel, running down the channel rails, like you’re in a foundry, like lava.” It is etched into my brain. Also: “It started popping out, boomboomboomboomboomboom!”
We do not publicly honor these heroes because we are all afraid of our pensions. So sad. Yet, every Highschool educated American knows about, or at least has heard about, Newton’s laws of motion. The third law states that action equals minus reaction. When body A exerts a force F on body B, then body B exerts an equal but opposite force -F on body A. You can feel it when you push a door closed with just one finger. You feel the door pushing back equally.
The North Tower, first hit, collapsed in about 10 seconds. Given from which height h it started to collapse, you can compute its downward acceleration a, using the formula
h = 0.5•a•t²
We find that a was about 6.5 m/s² or about two thirds of freefall acceleration of 9.8m/s². This is the smoking gun! It means that the remaining damaged construction was exerting an upward force of about one third of the weight of the collapsing bit to retard its downwards acceleration by about a third. Here it comes. According to Newton’s third law this means that the collapsing part was exerting a force of only a third of its weight (!!) on the as yet undestructed part of the building, the constructive steel of which wasn’t heated by any fire and hence not weakened at all.
Also, the building was engineered according to 1970 building codes, to be able to carry 5 times the weight of everything above every floor. So a building engineered to carry 500% of all of the weight above was pulverized by a force of just 33% of that weight? If you believe that, you’ll believe everything the government ever tells you, plus all commercials and all second hand car salesmen.
Don’t believe me, ask anyone who studied physics to verify what I just said. The firefighters, and the victims that they couldn’t save, deserve we start telling each other the truth.
The truth will out. ~ Shakespeare