The potential energy \( U \) of a particle is given by \( \mathrm{U}=\left\{20+(\mathrm{x}-4)^{2...

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The potential energy \( U \) of a particle is given by \( \mathrm{U}=\left\{20+(\mathrm{x}-4)^{2}\right\} \mathrm{J} \). Total mechanical energy
\( \mathrm{P} \) of the particle is \( 36 \mathrm{~J} \). Select the correct

W alternative :
(1) The particle oscillates about point \( x=4 \mathrm{~m} \)
(2) The amplitude of the particle is \( 4 \mathrm{~m} \)
(3) The kinetic energy of the particle at \( \mathrm{x}=2 \mathrm{~m} \) is \( 12 \mathrm{~J} \)
(4) All of these
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