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79. The center of mass is initially at height
h
L
=°
2
40
sin
when the system is released
(where
L
= 2.0 m). The corresponding potential energy
Mgh
(where
M
= 1.5 kg) becomes
rotational kinetic energy
1
2
2
I
ω
as it passes the horizontal position (where
I
is the

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