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41. (a) Referring to Sample Problem 155, we see that the distance between
P
and
C
is
hLLL
=−=
2
3
1
2
1
6
. The parallel axis theorem (see Eq. 15–30) leads to
=
1
12
+=
1
12
+
1
36
=
1
9
.
22
2
2
Im
L
m
h
m
Lm
L
F
H
I
K
Eq. 1529 then gives
T
I
mgh
L
gL
L
g
==
=
9
6
2
2
3
2
ππ
π
/
/
which yields
T
= 1.64 s for
L
= 1.00 m.
(b) We note that this
T
is identical to that computed in Sample Problem 155. As far as
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 Spring '08
 Any
 Physics

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