Physics

Problem

A force of magnitude

10\,\text{N}

acts at an angle of

30^{\circ}

above the positive x-axis in the

xy

-plane. Express the reaction force in unit-vector form. a)

5\sqrt3\,\hat i+5\,\hat j\,\text{N}

5\sqrt3\,\hat i-5\,\hat j\,\text{N}

-5\sqrt3\,\hat i-5\,\hat j\,\text{N}

-5\,\hat i-5\sqrt3\,\hat j\,\text{N}