1.
A force F=(5i^+3j^+2k^)\vec{F} = (5\hat{i} + 3\hat{j} + 2\hat{k}) N is applied over a particle which displaces it from its origin to the point r=(2i^j^)\vec{r} = (2\hat{i} - \hat{j}) m. The work done on the particle in joules is