A bullet fired into a fixed target loses half of its \( \mathrm{P} ...

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A bullet fired into a fixed target loses half of its
\( \mathrm{P} \) velocity after penetrating \( 3 \mathrm{~cm} \). How much further it will penetrate before coming to rest assuming that it
W faces constant resistance to motion?
(1) \( 1.5 \mathrm{~cm} \)
(2) \( 1.0 \mathrm{~cm} \)
(3) \( 3.0 \mathrm{~cm} \)
(4) \( 2.0 \mathrm{~cm} \)
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