Question
A force $F=(5 \hat{i}+3 \hat{j}) N$ is applied over a particle which displaces it from its origin to the point $r=(2 \hat{i}-1 \hat{j})$ metres. The work done on the particle is(a) $-7^{J}$(b) $+13 J$(c) $+7 J$(d) $+11 J$
Step 1
Step 1: The force vector is given as $F=(5 \hat{i}+3 \hat{j}) N$ and the displacement vector is given as $r=(2 \hat{i}-1 \hat{j}) m$. Show more…
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A force $\vec{F}=(5 \hat{i}+3 \hat{j}+2 \hat{k}) \mathrm{N}$ is applied over a particle which displaces it from its origin to the point $\vec{r}=(2 \hat{i}-\hat{j}) m .$ The work done on the particle in joules is (A) $+10$ (B) $+7$ (C) $-7$ (D) $+13$
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Round 2
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