The gravitational field in a region is given by \( \vec{I}=(4 \hat{...

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The gravitational field in a region is given by \( \vec{I}=(4 \hat{i}+\hat{\mathbf{j}}) \mathrm{N} / \mathrm{kg} \). Work done by this field is zero when the particle is moved along the line
\( \mathrm{P} \)
(A) \( y+4 x=2 \)
(B) \( 4 y+x=6 \)
W
(C) \( x+y=5 \)
(D) all of the above
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