Two pendulum oscillate with a constant phase difference of \( 90^{\circ} \) and same amplitude. ...

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Two pendulum oscillate with a constant phase difference of \( 90^{\circ} \) and same amplitude. The maximum velocity of one is \( v \). The maximum velocity of the other is \( v+x \). The
\( P \) value of \( x \) is
(A) 0
(B) \( \frac{v}{2} \)
(C) \( \frac{v}{3} \)
(D) \( v \tan 90^{\circ} \).
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