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Classical Mechanics, Second Edition, 2nd Edition
book

Classical Mechanics, Second Edition, 2nd Edition

by Tai L. Chow
May 2013
Intermediate to advanced content levelIntermediate to advanced
639 pages
23h 12m
English
CRC Press
Content preview from Classical Mechanics, Second Edition, 2nd Edition
Classical Mechanics50
© 2010 Taylor & Francis Group, LLC
Differentiating Equation 2.43 with respect to time, we nd the second law of motion for the
system as a whole:

PMRF
e
==
()
. (2.44)
That is, the total momentum
P
of a system of particles changes only as a result of the action of
external forces. Hence, if
F
e()
= 0
, we get the momentum conservation law for a system of particles:
P
= aconstant vector
(2.45)
Because the velocity of the CM of a closed system of particles is constant in time, the CM frame
is an inertial frame. The description of phenomena in this frame of reference eliminates complica-
tions arising from the motion of the sys ...
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Publisher Resources

ISBN: 9781466569980