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MAE 146: Astronautics
Dynamics
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View Full Document Newton's laws of motion
We have seen that the motion of a given particle appears
differently for 2 different observers (reference frames)
There is a priori no prefered reference frame from a
kinematic viewpoint.
However, our daily experience indicates that there is more
structure to motion than this!
To model these additional “constraints”, Newton's
formulated his first 2 “laws of motion”:
Remarks
Newton's
Laws
There is a
special class of reference frames, called
inertial
,
for
which
the
motion
of
a
particle
is
completely determined
(for all times), once:
➢
The
position
and
velocity
if
the
particle
is
known at a given time.
➢
The interaction between the particle and the
universe are known; these interactions being
the
same
in
all
the
inertial
frame
of
reference.
MAE 146:
Astronautics
Dynamics
BFV, 01/13/2010
1
Initial Value Problem
This is summarized in the “wellknown formula”:
Newton's laws result in
a system of 2
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This note was uploaded on 03/13/2010 for the course MAE 19100 taught by Professor Villac during the Winter '10 term at UC Irvine.
 Winter '10
 Villac

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