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57. By angular momentum conservation (Eq. 1133), the total angular momentum after
the explosion must be equal to before the explosion:
pr
LLLL
′′
+=+
©
§
¹
·
L
2
mv
p
+
1
12
ML
2
ω
′
=
I
p
+
1
12
ML
2
where one must be careful to avoid confusing the length of the rod (
L
= 0.800 m) with the
angular momentum symbol.
Note that
I
p
=
m
(
L
/2
)
2
by Eq.1033, and
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 Spring '08
 Any
 Physics, Angular Momentum, Momentum

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