The unit vector in xy-plane, making an angle of 60° with the positive direction of x-axis is :
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → $\frac{1}{2}\hat{i}+\frac{\sqrt{3}}{2}\hat{j}$
so $\hat v=\sin 60°\hat j+\cos 60°\hat i$
$\hat v=\frac{1}{2}\hat i+\frac{\sqrt{3}}{2}\hat j$