A body on earth has a resistance (Inertia) to
changes in acceleration depending on it's
amount of mass, the pull of gravity, and the
friction of it's surroundings. There for an
external force must be applied to over come
this resistance and allow movement to a new
The second part implies that inertia is a force.
Tending to keep it moving until a force is
applied to stop it.
So once a mass is set in motion it should
continue moving until it encounters some
obstacle in its path. We know this to be false
because there is always resistance to
movement here on earth caused by gravity,
and friction with the surrounding environment.
Which will cause a moving body to slow and
stop the minute the moving force is removed.
Energy and force are not the same thing, in the
first example the force does impart energy to
the mass, but in the second the force removes
the energy from the mass.
On earth a bodies resistance is depend on its
size, mass, shape, surface it is resting on, and
the atmosphere around it, when moving on the
surface or the atmosphere in flight. This so
called Inertia is caused by three factors
Gravity, Friction and Mass Resistance.
The mass of the object determines the amount
gravity pulls it towards the center of the earth
which gives it a measurable weight.
I believe that millions of people who have had
a high school education, or higher still fail to
understand the theories of some of the great
thinkers of the past. Some of which have
brought about the great age we live in today.
No theory is a truth until it is proven, but some
which have worked to produce tangible results
are considered by the public as true. As such
they can not see a principle that is not new,
but has been interpreted in the wrong way. An
example of this is Inertia, a word used by
Newton in his theories. To represent what? Is
it a force, or energy?
The definition for Inertia is: The tendency of a
body to remain at rest unless acted upon by a
external force, or for the body to remain in
motion unless acted open by an external force.
The first part of this definition contradicts the
second. Since in the first part it is obvious that
inertia is a resistance to movement, or I should
say acceleration above or below its rest
The earth is revolving on its axes at
approximately 1000 mph, and carrying
everything along with it, nothing on earth is
really at rest. When two bodies are moving at
the same speed they are motionless relative to
one another. An example is buildings, trees,
and other things attached to the earth, or
things not attached to the earth such as
animals, and man. They are all traveling with
the spin of the earth, but to each other they
are motionless. For a movable body to change
it's location it must increase, or decrease this
velocity depending on the direction it wishes to
move, and over come what holds it in place.