The speed \( (v) \) of a particle moving along a straight line, when it is at a distance \( (x) ...

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The speed \( (v) \) of a particle moving along a straight line, when it is at a distance \( (x) \) from a fixed point on the line, is given by \( v^{2}=144-9 x^{2} \). Select the wrong option.
\( \mathrm{P} \)
(a) Displacement of the particle \( \leq \) distance moved by it
(b) The magnitude of acceleration at a distance 3 units from the fixed point is 27 units
W
(c) The motion is simple harmonic with \( T=\frac{\pi}{3} \) units
(d) The maximum displacement from the fixed point is 4 units
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