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34. (a) Eq. 1012 implies that the angular acceleration
α
should be the slope of the
ω
vs
t
graph.
Thus,
α
= 9/6 = 1.5 rad/s
2
.
(b) By Eq. 1034,
K
is proportional to
2
.
Since the angular velocity at
t
= 0 is –2 rad/s
(and this value squared is 4) and the angular velocity at
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 Spring '08
 Any
 Physics, Acceleration

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