A particle moves from position to

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

Problem

A particle moves from position r1=4i^+2j^ m\mathbf{r}_1=4\hat{i}+2\hat{j}\,\text{m} to r2=−1i^+6j^ m\mathbf{r}_2=-1\hat{i}+6\hat{j}\,\text{m}. What is the displacement Δr=r2−r1\Delta\mathbf{r}=\mathbf{r}_2-\mathbf{r}_1? (a) 5i^+4j^ m5\hat{i}+4\hat{j}\,\text{m} (b) 3i^+8j^ m3\hat{i}+8\hat{j}\,\text{m} (c) −5i^+4j^ m-5\hat{i}+4\hat{j}\,\text{m} (d) −5i^−4j^ m-5\hat{i}-4\hat{j}\,\text{m}

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