A particle undergoing simple harmonic motion has time dependent dis...

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A particle undergoing simple harmonic motion has time dependent displacement given by \( x(t)=A \sin \frac{\pi t}{90} \). The ratio
\( \mathrm{P} \) of kinetic to potential energy of this particle at \( t=210 \) s will

W be
[JEE (Main) 2019]
(a) \( \frac{1}{9} \)
(b) 1
(c) \( \frac{1}{3} \)
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