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Ballistics, 2nd Edition
book

Ballistics, 2nd Edition

by Donald E. Carlucci, Sidney S. Jacobson
August 2013
Intermediate to advanced content levelIntermediate to advanced
608 pages
21h 36m
English
CRC Press
Content preview from Ballistics, 2nd Edition
215Dynamics Review
We now will examine the acceleration whose direction is once more specied by the right-
hand rule. We shall dene the position of point, P, by the position vector, r, as shown in
Figure 7.14. We can then write the acceleration, a, in terms of radial and circumferential
components as discussed earlier.
We need to recall Equation 7.42 and note that dr/dt = 0. This leaves us with
ae
e=−
+
r
t
r
t
r
d
d
d
d
θθ
θ
2
2
2
(7. 54)
Here we need to note that the rst term is negative because it acts in the negative radial
direction. Now, from our previous denitions we can rewrite Equation 7.54 as
aee
=− +
()()rr
r
ω
2
α
θ
(7. 55)
We can dene ...
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Publisher Resources

ISBN: 9781466564374