Solve this following

Question:

A force $\overrightarrow{\mathrm{F}}=(5 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}+2 \hat{\mathrm{k}}) \mathrm{N}$ is applied over a particle which displaces it from its origin to the

point $\overrightarrow{\mathrm{r}}=(2 \hat{\mathrm{i}}-\hat{\mathrm{j}}) \mathrm{m}$. The work done on the particle in joules is-

 

  1. $-7 \mathrm{~J}$

  2. $+7 \mathrm{~J}$

  3. $+10 \mathrm{~J}$

  4. $+13 \mathrm{~J}$


Correct Option: , 2

Solution:

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