...
Coordinate
...
Systems
...
Because
...
a
...
difference
...
in
...
...
is
...
required
...
when
...
employing
...
the
...
...
...
...
for
...
the
...
...
...
...
...
...
...
,
...
it
...
is
...
important
...
to
...
carefully
...
consider
...
the
...
problem
...
statement,
...
define
...
a
...
useful
...
...
...
,
...
and
...
accurately
...
assign
...
the
...
initial
...
and
...
final
...
positions.
...
The
...
power
...
to
...
choose
...
an
...
advantagous
...
origin
...
and
...
direction
...
for
...
your
...
coordinates
...
is
...
a
...
feature
...
of
...
all
...
the
...
motion
...
models
...
that
...
can
...
often
...
be
...
exploited
...
to
...
simplify
...
calcuations,
...
but
...
it
...
is
...
important
...
to
...
remember
...
that
...
with
...
great
...
power
...
comes
...
great
...
responsibility:
...
failing
...
to
...
consciously
...
choose
...
a
...
coordinate
...
system
...
can
...
lead
...
to
...
sloppy
...
math
...
and
...
an
...
incorrect solution.
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