A particle moves in a potential region given by \( U=8 x^{2}-4 x+400 \) Joule. Its state of equi....

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A particle moves in a potential region given by
\( \mathrm{P} \)
\( U=8 x^{2}-4 x+400 \) Joule. Its state of equilibrium will
W
be
(1) \( x=25 \mathrm{~m} \)
(2) \( x=0.25 \mathrm{~m}^{\text {Att }} \)
(3) \( x=0.025 \mathrm{~m} \)
(4) \( x=2.5 \mathrm{~m} \)


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