The potential energy of a particle of mass \( 0.1 \mathrm{~kg} \), moving along the \( x \)-axis...

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The potential energy of a particle of mass \( 0.1 \mathrm{~kg} \), moving along the \( x \)-axis, is given by \( U=5 x(x-4) \mathrm{J} \), where \( x \) is in metres. Choose the wrong option.
P
(a) The speed of the particle is maximum at \( x=2 \mathrm{~m} \)
(b) The particle executes simple harmonic motion
W
(c) The period of oscillation of the particle is \( \frac{\pi}{5} \mathrm{~s} \)
(d) None of the above
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