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Objects in motion generate more force than stationary objects.
A stationary rock on a table does not put as much force into the table as one crashing into the table at 200 mph.
It's quite simple.
Gravitational potential energy is the energy stored in an object as the result of its vertical position or height. The energy is stored as the result of the gravitational attraction of the Earth for the object. The gravitational potential energy of the massive ball of a demolition machine is dependent on two variables - the mass of the ball and the height to which it is raised.
Originally posted by Gorman91
...In case you don't get it, if the Earth were to hit a small rock the size of a car that was stationary relative to the whole universe, the Earth would turn it to dust.
I'm not going to reply to the rest of your stuff until you can understand these most basic physical facts.
We are not generating any force at those speeds because we have not yet hit anything.
This so-called mysterious force is known at potential energy, and yes, we are storing it up in motion.
What was this claim of yours I don't know physics?
Let this explain it to you:
Guess what a 5th of the WTC about to fall has in terms of potential energy?
Jeez dude.
In case you don't get it, if the Earth were to hit a small rock the size of a car that was stationary relative to the whole universe, the Earth would turn it to dust.
I'm not going to reply to the rest of your stuff until you can understand these most basic physical facts.
Potential energy is closely linked with forces. If the work done moving along a path which starts and ends in the same location is zero, then the force is said to be conservative and it is possible to define a numerical value of potential associated with every point in space
When a rock slide occurs.....
Originally posted by Gorman91
reply to post by ANOK
Sure I explained why. You've failed to respond to my why. You simply say I am wrong and move on.
When a rock slide occurs, no extra mass is added. The rocks simply destabilize and fall. I fail to see how you need to add mass to make them fall once the material ability to generate resistant force is gone.
You completely ignore this fact and lie that you MUST add more mass. No, you do not. In as much a burned stick cannot hold the same mass as a non-burned stick, a burned iron frame cannot hold the same mass as a good cool iron frame.
It is simple. Material property change when conditions change. Failure to understand that, and saying I do not understand physics, is nothing short of hilarious.
Originally posted by weedwhacker
reply to post by Gorman91
When a rock slide occurs.....
Not only THAT example (though a good one) what about an AVALANCHE????
Not sure why people don't understand this, as relates to gravity......
Originally posted by Gorman91
reply to post by weedwhacker
Avalanche is a perfect example. heat changes the materiality. Can no longer hold structure. Structure falls down. Steel is no different.
Originally posted by Gorman91
reply to post by ANOK
Hey guess what.
Add heat?
Resistance decreases.
In as much as water vapor doesn't have the same resistance as ice, solid room temperature steel does not have the same resistance as bending hot steel at jet fuel fires temperatures.
perhaps it is you who knows not how resistance works.