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Physics
Problem
A fan blade speeds up uniformly from
12
rad
s
−
1
\,12\,\text{rad}\,\text{s}^{-1}
12
rad
s
−
1
to
20
rad
s
−
1
\,20\,\text{rad}\,\text{s}^{-1}
20
rad
s
−
1
in
2.0
s
2.0\,\text{s}
2.0
s
. Determine the blade’s average angular acceleration.
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