A F→=5i−3j+2k force moves a particle from r1→=2i+7j+4k to r2→=5i+2j+8k Calculate the work-done.

∴W=F→.S→=F→.(r2→−r1→)W=(5i−3j+2k)(3i+(−5)j+4k)=15+15+8∴W=38J

A F→=5i−3j+2k force moves a particle from r1→=2i+7j+4k to r2→=5i+2j+8k Calculate the work-done.

∴W=F→.S→=F→.(r2→−r1→)W=(5i−3j+2k)(3i+(−5)j+4k)=15+15+8∴W=38J

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A $\vec{F} = 5 i - 3 j + 2 k$ force moves a particle from $\vec{r_{1}} = 2 i + 7 j + 4 k$ to $\vec{r_{2}} = 5 i + 2 j + 8 k$ Calculate the work-done.

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$∴ W = \vec{F} . \vec{S} = \vec{F} . (\vec{r_{2}} - \vec{r_{1}})$

$W = (5 i - 3 j + 2 k) (3 i + (- 5) j + 4 k)$

$= 15 + 15 + 8$

$∴ W = 38 J$

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A F→=5i−3j+2k force moves a particle from r1→=2i+7j+4k to r2→=5i+2j+8k Calculate the work-done.

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A $\vec{F} = 5 i - 3 j + 2 k$ force moves a particle from $\vec{r_{1}} = 2 i + 7 j + 4 k$ to $\vec{r_{2}} = 5 i + 2 j + 8 k$ Calculate the work-done.