Giuliani Confronted By 9/11 Truthers, Lies About WTC Collapse w/videos, page 5
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reply posted on 6-6-2007 @ 02:31 AM by billybob
Originally posted by Bhadhidar
Just a few points:

A moving body has more Kinetic Energy than a stationary one (body). The mass of a moving object does not change, at least not appreciably, and at least not until the velocity of the object has reached a significantly relativistic speed.

Inertia is the tendency of a object at rest to remain at rest; its resistance to be moved.

Momentum is the tendency of an object, already in motion, to remain in motion.

Mass+Momentum= Kinetic Energy, ie. the potential force of impact.

Such as when an airplane slams into a skyscraper.

So when an airplane (Mass+Momentum=Kinetic Energy) hits a skyscaper(Mass+0 Momentum=Inertia) there is a transfer of energy from the plane to the building, in a strictly mechanical sense.

But the plane is destroyed because, even with all the kinetic energy expressed, the force generated by the impact is not sufficient to overcome the building's far greater inertia. The building, in this instance, merely absorbed the force of impact through minor deflection and non-critical structural damage.


i think you need review.

inertia is the tendency of a body that is in motion to remain in motion, and a body at rest to remain at rest.

momentum is an increase in mass(potential energy) of a moving body. increased by it's velocity factor. ie:

p is the momentum
m is the mass
v the velocity

p = m X v

when you increase the velocity, you EFFECTIVELY increase the mass for moment calculations.

when you increase one factor, you increase the others, as well. that's why there is an 'equals' sign between the two sides of the EQUAtion.

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