The work done when a force acts on a particle moving from to is

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

The work done when a force

\mathbf{F}=(\hat{i}+2\hat{j}+3\hat{k})\,\text{N}

acts on a particle moving from

\mathbf{r}_1=(\hat{i}+\hat{j}+\hat{k})\,\text{m}

\mathbf{r}_2=(\hat{i}-\hat{j}+2\hat{k})\,\text{m}

is (1)

-3\,\text{J}

(2)

-1\,\text{J}

(3) Zero (4)

2\,\text{J}