The gravitational field in a region is given by \( \vec{E}=(3 \hat{i}-4 \hat{j}) \mathrm{Nkg}^{-...

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The gravitational field in a region is given by \( \vec{E}=(3 \hat{i}-4 \hat{j}) \mathrm{Nkg}^{-1} \). Find out the work done (in joule) in displacing a particle by \( 1 \mathrm{~m} \) along the line \( 4 y=3 x+9 \).
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