Answer
$\textbf{u}=\langle \frac{5\sqrt 3}{2},\frac{5}{2} \rangle$
Work Step by Step
Step 1: $\textbf{u}=\langle 5\cos30^{\circ},5\sin30^{\circ} \rangle$
Step 2: $\textbf{u}=\langle 5(\frac{\sqrt 3}{2}),5(\frac{1}{2}) \rangle$
Step 3: $\textbf{u}=\langle \frac{5\sqrt 3}{2},\frac{5}{2} \rangle$
