posted on Mar, 29 2012 @ 04:22 PM
Originally posted by lunarasparagus
reply to post by ANOK
Regardless, at the their velocity, it seems the planes carried enough kinetic energy to easily sever the outer and some of the core columns.
Again an OSer proves he doesn't understand physics, why am I not surprised?
Have you ever heard of Sir Issac Newton?
Newton's laws of motion are three physical laws that form the basis for classical mechanics.
Ever heard of Newtons three laws of motion?
Ever heard the phrase 'equal and opposite reaction?
... in every interaction, there is a pair of forces acting on the two interacting objects. The size of the force on the first object equals the
size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second
object. Forces always come in pairs - equal and opposite action-reaction force pairs.
Do you understand what that means lunarasparagus? It means the force on the plane is EQUAL to the force on the buildings when they collided. What
does that mean? It means the velocity of the plane is not the deciding factor. Mass is the deciding factor. The object with the most mass will be
the least damaged.
Both the plane and the steel would experience the same kinetic energy, that force would be the same on the plane and the steel.
Now read this carefully....
Newton's third law of motion is naturally applied to collisions between two objects. In a collision between two objects, both objects
experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the
other object to slow down (lose momentum). According to Newton's third law, the forces on the two objects are equal in magnitude. While the
forces are equal in magnitude and opposite in direction, the accelerations of the objects are not necessarily equal in magnitude. In accord with
Newton's second law of motion, the acceleration of an object is dependent upon both force and mass. Thus, if the colliding objects have unequal
mass, they will have unequal accelerations as a result of the contact force that results during the collision.
It's the unequal acceleration that causes the damage. The object with the most mass will decelerate more slowly than the smaller mass, which will
stop a lot faster causing is to receive more damage.
You can test this for yourself here...
Try it and learn what happens when two objects collide.
edit on 3/29/2012 by ANOK because: (no reason given)