A wooden block floats in a liquid with \( 40 \% \) of its volume in...

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A wooden block floats in a liquid with \( 40 \% \) of its volume inside the liquid. When the vessel
\( \mathrm{P} \) containing the liquid starts rising upwards with

W acceleration \( \mathrm{a}=\mathrm{g} / 2 \), the percentage of volume inside the liquid is
(1) \( 20 \% \)
(2) \( 60 \% \)
(3) \( 30 \% \)
(4) \( 40 \% \)
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