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<p>
  Define the vector $\vec{w} = \vec{u} + \vec{v}$,
  where $\vec{u} = [{{params.ux}}, {{params.uy}}]\rm\ m/s$
  and $\vec{v} = [{{params.vx}}, {{params.vy}}]\rm\ m/s$.
</p>
<img src="<% print(questionFile("fig1.png")) %>" width="150" class="img-responsive center-block" />
<p>
  What is $\vec{w}$?
</p>
<p>
  $\vec{w} = $ [<input data-instavalue="submittedAnswer.wx" />,
  <input data-instavalue="submittedAnswer.wy" />]$\rm\ m/s$
</p>