A force F¯=(5i^−3j^+2k^)N moves a particle from r¯1=(2i^+7j^+4k^)m to r¯2=(5i^+2j^+8k^)m. The work done by the force is (in J)

W=F¯.S¯ where S¯=r¯2−r¯1⇒W=(5i^-3j^+2k^)(3i^-5j^+4k^)=38J

A force F¯=(5i^−3j^+2k^)N moves a particle from r¯1=(2i^+7j^+4k^)m to r¯2=(5i^+2j^+8k^)m. The work done by the force is (in J)

W=F¯.S¯ where S¯=r¯2−r¯1⇒W=(5i^-3j^+2k^)(3i^-5j^+4k^)=38J

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A force $\bar{F} = (5 \hat{i} - 3 \hat{j} + 2 \hat{k}) N$ moves a particle from ${\bar{r}}_{1} = (2 \hat{i} + 7 \hat{j} + 4 \hat{k}) m t o {\bar{r}}_{2} = (5 \hat{i} + 2 \hat{j} + 8 \hat{k}) m$ . The work done by the force is (in J)

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$W = \bar{F} . \bar{S} where \bar{S} = {\bar{r}}_{2} - {\bar{r}}_{1}$

$\Rightarrow W = (5 \hat{i} - 3 \hat{j} + 2 \hat{k}) (3 \hat{i} - 5 \hat{j} + 4 \hat{k}) = 38 J$

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A force F¯=(5i^−3j^+2k^)N moves a particle from r¯1=(2i^+7j^+4k^)m to r¯2=(5i^+2j^+8k^)m. The work done by the force is (in J)

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A force $\bar{F} = (5 \hat{i} - 3 \hat{j} + 2 \hat{k}) N$ moves a particle from ${\bar{r}}_{1} = (2 \hat{i} + 7 \hat{j} + 4 \hat{k}) m t o {\bar{r}}_{2} = (5 \hat{i} + 2 \hat{j} + 8 \hat{k}) m$ . The work done by the force is (in J)