A force of acts at an angle of above the positive x-axis

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

A force of

10\,\text{N}

acts at an angle of

60^\circ

above the positive x-axis. Which option gives this force in unit-vector form? (a)

8.66\,\mathbf{î} + 5\,\mathbf{ĵ}

(b)

-5\,\mathbf{î} + 8.66\,\mathbf{ĵ}

(c)

5\,\mathbf{î} + 8.66\,\mathbf{ĵ}

(d)

10\,\mathbf{î} + 17.32\,\mathbf{ĵ}