A humble paper on Physics, explaining why bodies are weighless as they are in free fall. Explained by me after observing that phaenomena in the California Science Center on Sunday.
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Why bodies ar weighless as they fall freely
1. Now and then I am tempted to write about my experience in physics observation.
Since I visited the California ScienceCenter on Sunday with some friends, I’m able now
to explain some of the characteristics of the observations I’ve made.
Since the show I visited explained the voyages to the outer space, the characteristical
physics which I’m going to explain are derived only by those observations.
Laws of Physics
Law number 1: When a body falls freely , wich is the behaviour of its own weight?
Observation number 1: When a body falls freely, its weight comes to zero, just as a the
Theory of Relativity describes.
Explanation: apparently, when a body is inserted into a box, i.e. the box shall fall freely at
a certain speed, wich becomes more important that the weight of the body that’s inside.
Relativately explained, the force of gravity that acts upon the box could be greater that
that of the body.
This comes almost logically.
Since the laws of physics are derived and explained as a logical consequence of the
relationship of different objects (for example gravity is explained by Newton as a
response of the presence of a body by another body wich is more massive).
One should think like this? : In a dynamic environment, it comes to a moment where
actually the force of gravity of an object is derived and explained (box) while the other
force is equally being derived and explained (body). Wich one becomes first or more
important? And for the eyes of who?
Body
Box
Free fall
2. In a relativistc way we should explain that actually exists no gravity for the body that is
in fact creating it (in this case the Earth), but actually is only for human reason that
gravity exists.
So: Who decides wich of the 2 forces is going to be taken into account?
Observation: this explanation is actually very good for someone who cares deeply about
the observation of both movements, but it may be descared by someone who overlooks
this and would just simplify things as both bodies falling simultaneously.
Every body on this earth is attracted by the gravitational pull of the
earth. A freely falling object has weight W=mg, where W-weight, m-
mass of the object and g-acceleration produced due to the earth's
gravity. An object kept in a lift which falls freely, weighs zero on the
weighing machine, but its actual weight is still mg. This happens
because the normal reaction force exerted on the object in the lift is
equal to zero, and normal force equals to mg, which in turn equals the
weight of the object.
Source: http://timesofindia.indiatimes.com/home/sunday-times/Why-
does-a-falling-object-have-no-weight/articleshow/5306119.cms
Explanation: do you think a m.g. force in the object, was something compared to he force
what was actually used for its lifting?
Well, no. Action = Reaction. Then the force of the lift is greater than force of gravity of
the body. Then Reaction to m.g. of the body, equals to zero (or almost) <the object lifted
opposes almost no Reaction to its lift>.
Then at the moment of the fall, Action = Reaction to the box. Wich is a great force.
That is greater than of the body’s.
So voilá !