45.0\(^\circ\)
3.00
\(\vec{A}=k\vec{u}\)
\(\vec{u} = \) 0.71 \( \hat{i} \) + 0.71 \( \hat{j} \)
\(k = \) number of u's \( =\) 2.00
\(\vec{A} = \) 1.41 \(\hat{i}\) + 1.41 \(\hat{j} \)