Which one of the following correctly represents the position vector of a point whose…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Kinematics · Kinematics

Problem

Which one of the following correctly represents the position vector

\mathbf r

of a point whose Cartesian coordinates are

(x,y)

? (a)

y\,\hat{\mathbf i}+x\,\hat{\mathbf j}

(b)

x\,\hat{\mathbf i}+y\,\hat{\mathbf j}

(c)

(x+y)\,\hat{\mathbf k}

(d)

x\,\hat{\mathbf j}+y\,\hat{\mathbf i}