What displacement at an angle 60o to the x-axis has an x-component of 5 m ? i^ and j^ are unit vectors in x and y directions, respectively.

In first option (1), vector is along the x-axis (figure). In (2), angle of vector with the x-axis tan⁡θ=55=1⇒θ=45∘In (c), angle of vector with the x-axis tan⁡α=535=3⇒α=60∘