Work done by a force on a body is

PHYSICS · Subjective · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

Work done by a force

\mathbf{F}

on a body is

W=\mathbf{F}\cdot\mathbf{s}

, where

\mathbf{s}

is the displacement of the body. Given that under a force

\mathbf{F}=(2\hat{i}+3\hat{j}+4\hat{k})\text{ N}

, a body is displaced from position vector

\mathbf{r}_1=(2\hat{i}+3\hat{j}+\hat{k})\text{ m}

to position vector

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

, find the work done by this force.