Answer
$\theta= 0^{\mathrm{o}}$
Work Step by Step
(b)
(Calculation done in part a.)
$ \vec{v}_{avg,AC}$=($0.0083$ m/s$)\hat{i} \quad $points in the direction of the +x axis.
The angle to the +x axis is
$\theta= 0^{\mathrm{o}}$
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