Identify the correct unit-vector representation of a displacement of magnitude making…

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

Identify the correct unit-vector representation of a displacement of magnitude

10\,\text{m}

making an angle of

37^{\circ}

above the positive x-axis. (a)

6\,\hat\imath + 8\,\hat\jmath\;\text{m}

(b)

0.8\,\hat\imath + 0.6\,\hat\jmath

(c)

8\,\hat\imath + 6\,\hat\jmath\;\text{m}

(d)

8\,\hat\imath - 6\,\hat\jmath\;\text{m}