A marble of mass \( x \) and diameter \( 2 r \) is gently released in a tall cylinder containing...

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A marble of mass \( x \) and diameter \( 2 r \) is gently released in a tall cylinder containing honey. If the marble displaces mass \( y(x) \) of the liquid, then the terminal velocity is proportional to
(1) \( x+y \)
(2) \( x-y \)
(3) \( \frac{x+y}{r} \)
(4) \( \frac{x-y}{r} \)
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